Transcript 5/19 do now * on a new sheet

5/19 do now – on a new sheet
• A spark timer is used to record the position of a lab cart accelerating
uniformly from rest. Each 0.10 second, the timer marks a dot on a
recording tape to indicate the position of the cart at that instant, as
shown. The linear measurement between t = 0 second to t = 0.30 is
6.0 cm. Calculate the magnitude of the acceleration of the cart
during that time interval. [show all work including equation and
substitution with number and units.]
d = vit + ½ at2
6.0 cm = ½ a(0.3s)2
a = 133 cm/s2
Objectives – Regents Review
• Test 1
• Mechanics review packet - Quiz on Tuesday 5/20
• Homework:
– 5 Castle learning assignments – due 5/26 – quiz on 5/27
– Work and energy review packet – quiz on 5/30
• When finished all assignments, you may have extra
credit packet
5/20 do now
• Mechanics Review Packet Quiz
Objectives – Regents Review
• Test 1 / test 1 correction
• Work and energy review packet – quiz on 5/30
• Homework:
– 5 Castle learning assignments – due 5/26 – quiz on
5/27
• When finished all assignments, you may have extra
credit packet
• No post tomorrow – make up labs today and Thursday
5/21 do now
• Newton’s 1st law (aka the law of inertia) says that an object
will remain its state of motion unless acted on by an
unbalanced force.
1. What does inertia mean?
Inertia: the resistance an object has to a
change in its state of motion.
2. How is inertia related to mass?
3. What is the state of motion?
4. What is force?
Mass is the measure of amount of
inertia. More mass, more inertia.
Mass is the measure of amount of
inertia. More mass, more inertia.
The state of motion of an object is defined by its velocity
- the speed with a direction.
5. What is unbalanced force?
Unbalance force is the net force. Net
force causes acceleration or change in
state of motion.
Objectives – Regents Review
• Give back mechanics quiz – you may retake during post.
• Test 1 correction / Test 2
• Work and energy review packet – quiz on 5/30
• T-shirt money is due tomorrow - $8.00
• Homework:
– 5 Castle learning assignments – due 5/26 – quiz on
5/27
• No post today – make up labs Tomorrow
5-22 Objectives
• State assessment, no questions.
• T-shirt money is due tomorrow - $8.00
• Homework:
– 5 Castle learning assignments – due 5/26 – quiz on
5/27
– Work and energy review packet – quiz on 5/30
• Last day to make up labs
• Test 1 correction / Test 2
5/27 do now
• Castle learning quiz
Objectives
• Test 1C/Tests correction – please, please ask for help if you have
questions!!!!
• Work and energy review packet, to be collected – quiz on 5/30
• TOMORROW is last day for T-shirt money - $8.00
• Homework:
– 5 Castle learning assignments – REVIEW FOR FINAL - due 6/3
– Essay – due 6/5 – 10% of 4th quarter grade
• FINAL EXAM: 6/4 7:30am - 8:50am, bring calculator, ruler, protractor
• Return your text books.
• You may retake quizzes during post – grade is averaged
• Extended Post Session Review This Week – Wednesday and Friday – 2:00 –
4:00.
5/28 do now
1. Define Newton’s 2nd Law
The direction of acceleration of an object is in the same direction as
the net force. The magnitude of acceleration of an object is directly
proportional to its net force and inversely proportional to its mass.
2. What does force mean?
A force is a push or pull upon an object resulting from the object's
interaction with another object.
3. What is the meaning of net force?
Net force, also known as unbalanced force, is the sum of all forces.
Net force causes acceleration.
4. What is the definition of acceleration?
Acceleration is defined as change of velocity over time. Acceleration
is caused by net force.
• Newton’s 1st law (aka the law of inertia) says that an object will
remain its state of motion unless acted on by an unbalanced force.
1. What does inertia mean?
Inertia is the resistance an object has to a change in its state of
2. How
is inertia related to mass?
motion.
Mass
the
measure
of amount of inertia. More mass, more inertia.
3. What
is is
the
state
of motion?
The state of motion of an object is defined by its velocity - the
speed
with a direction.
4. What
is force?
A force is a push or pull upon an object resulting from the object's
5. What
is unbalanced
force?object.
interaction
with another
Unbalance force is the net force. Net force causes acceleration or
change in state of motion.
Objectives
• Go over castle learning quiz
• Tests correction/Test C, Test 3 – please, please ask for help if you have
questions!!!!
• Work and energy review packet, to be collected – quiz on 5/30
• TODAY is last day for T-shirt money - $8.00
• Homework:
– 5 Castle learning assignments – REVIEW FOR FINAL - due 6/3
– Essay – due 6/5 – 10% of 4th quarter grade
• FINAL EXAM: 6/4 7:30am - 8:50am, bring calculator, ruler, protractor
• Return your text books.
• You may retake quizzes during post – grade is averaged
• Extended Post Session Review This Week – Wednesday and Friday – 2:00 –
4:00.
5/29 do now
• Castle learning review sheet 2A
Objectives
• Go over castle learning review sheet
• Tests correction/new review tests – please, please ask for help if you have
questions!!!!
• Work and energy review packet, to be collected – quiz tomorrow
• Homework:
– 5 Castle learning assignments – REVIEW FOR FINAL - due 6/3
– Essay – due 6/5 – 10% of 4th quarter grade
• FINAL EXAM: 6/4 7:30am - 8:50am, bring calculator, ruler, protractor
• Return your text books.
• You may retake quizzes during post – grade is averaged
• Extended Post Session Review This Week
– Today, 2:00 – 3:00
– Tomorrow, 2:00 – 4:00.
5/30 do now – on a new sheet
1. Newton’s second law predicts the relationship that acceleration will have
with the net force for a given mass. Explain this relationship by writing the
formula and then explaining if there is a direct or inverse relationship
between the force and the acceleration (1 pt), what happens to the
acceleration if the mass changes (1 pt), and then explain what conditions
must be necessary for equilibrium to exist in the system (1 pt).
a
Fnet
m
Acceleration is directly proportional to net force,
inversely proportional to mass. In order for an
object to stay in equilibrium, Fnet must be zero.
2. Give two examples of mechanical waves and describe if they are
longitudinal or transverse (2 pts). Explain at least two similarities between
mechanical waves and electromagnetic waves (2 pts) and describe at least
one difference (1 pt).
Both sound and stadium wave are mechanical waves. Sound wave is
a longitudinal wave and stadium wave is a transverse wave. Both
mechanical wave and electromagnetic wave transfer energy and
have wave characteristics, but mechanical wave can only propagate
through matter, electromagnetic wave can travel through vacuum
and matter.
Objectives
• Energy packet is due/Energy Packet Quiz
• Final Exam Review packet
• Tests correction/new review tests – please, please ask for help if you
have questions!!!!
• Homework:
– 5 Castle learning assignments – REVIEW FOR FINAL - due 6/3
– Essay – due 6/5 – 10% of 4th quarter grade
• FINAL EXAM: 6/4 7:30am - 8:50am, bring calculator, ruler,
protractor
• Return your text books.
• You may retake quizzes during post – grade is averaged
• Extended Post Session Review Today, 2:00 – 4:00.
6/2 do now
1. Which statement about ammeters and voltmeters is correct?
a. The internal resistance of both meters should be low.
b. Both meters should have a negligible effect on the circuit being
measured.
c. The potential drop across both meters should be made as large
as possible.
d. The scale range on both meters must be the same.
2. The spring of a toy car is wound by pushing the car backward with
an average force of 15 N through a distance of 0.50 meter. How
much elastic potential energy is stored in the car’s spring during
this process?
W = Fd = ∆ET
(15 N)(0.50 m) = PEs - 0
PEs = 7.5 J
Objectives
• Go Over Final Exam Review packet
• Tests correction/new review tests – please, please ask for help if you have
questions!!!!
• Homework:
– 5 Castle learning assignments – REVIEW FOR FINAL - due 6/3
– Essay – due 6/5 – 10% of 4th quarter grade
• FINAL EXAM: Wed. 7:30am - 8:50am, bring calculator, ruler, protractor.
Please report to Rm 146 if you have conflict
– Pd. 2
– Pd. 4
– Pd. 8
217
218
220
• Return your text books.
• You may retake quizzes during post – grade is averaged
• Extended Post Session Thurs and Fri, 2:00 – 4:00.
6/5 do now – on a new sheet
Four identical projectiles are launched with the same
initial speed, v, but at various angles above the level
ground. Which diagram represents the initial velocity of
the projectile that will have the largest total horizontal
displacement? [Neglect air resistance.]
A.
B.
C.
D.
Objectives
• Tests correction/new review tests – please, please ask for help if you have
questions!!!!
• Essay – due TODAY – 10% of 4th quarter grade
• Homework:
– Lab procedure writing packet – due Monday 6/9 – Quiz on 6/9
– 5 Castle learning assignments – REVIEW FOR REGENTS - due 6/13 –
quiz on 6/13
• Return your text books.
• You may retake quizzes during post – grade is averaged
• Extended Post Session This Week Thurs, 2:00 – 4:00.
Regents Exam – 6/20
6/6 do now
The diagram represents a bicycle and rider traveling to the right
at a constant speed. A ball is dropped from the hand of the cyclist.
Which set of graphs below best represents the horizontal motion
of the ball relative to the ground? [Neglect air resistance.]
A.
C.
B.
D.
Objectives
• Tests correction/new review tests – please, please ask for help if you have
questions!!!!
• Essay – due YESTERDAY – 10% of 4th quarter grade
• Homework:
– Lab procedure writing packet – due Monday 6/9 – Quiz on 6/9
– 5 Castle learning assignments – REVIEW FOR REGENTS - due 6/13 –
quiz on 6/13
• RETURN YOUR TEXT BOOKS.
• You may retake quizzes during post – grade is averaged
Regents Exam – 6/20
6/9 do now
• Experiments design quiz
Objectives
• Tests correction/new review tests – please, please ask for help if you have
questions!!!!
• Essay – due Last Thursday – 10% of 4th quarter grade
• Homework:
– 5 Castle learning assignments – REVIEW FOR REGENTS - due 6/13 –
quiz on 6/13
• RETURN YOUR TEXT BOOKS.
• You may retake final review quizzes during post – grade is averaged
Regents Exam – 6/20
6/11 do now
• Which object will have the greatest change in electrical energy?
[show work]
1. an electron moved through a potential difference of 2.0 V
2. a metal sphere with a charge of 1.0 × 10−9 C moved through a
potential difference of 2.0 V
3. an electron moved through a potential difference of 4.0 V
4. a metal sphere with a charge of 1.0 × 10−9 C moved through a
potential difference of 4.0 V
Objectives
• Tests correction/new review tests – please, please ask for help if you have
questions!!!!
• Homework:
– 5 Castle learning assignments – REVIEW FOR
REGENTS - due 6/12 – quiz on 6/13
• RETURN YOUR TEXT BOOKS.
• You may retake final review quizzes during post – grade is averaged
Regents Exam – 6/20
6/12 do now
• A skier starting from rest skis straight down a slope
50. meters long in 5.0 seconds. What is the
magnitude of the acceleration of the skier? [show
work]
• An object accelerates uniformly from rest to a speed
of 50. meters per second in 5.0 seconds. What is the
average speed of the object during the 5.0 second
interval? [show work]
Objectives
• Tests correction/new review tests – please, please ask for help if you have
questions!!!!
• Homework:
– 5 Castle learning assignments – REVIEW FOR
REGENTS - due tonight – quiz tomorrow
• RETURN YOUR TEXT BOOKS.
• You may retake final review quizzes during post – grade is averaged
Regents Exam – 6/20
6/13 do now
• Castle learning quiz
6/13 Objectives
• Castle learning quiz
• Tests correction/new review tests – please, please ask for help if you have
questions!!!!
• Homework:
– 5 Castle learning assignments – REVIEW FOR
REGENTS - due 6/20
• RETURN YOUR TEXT BOOKS.
• You may retake final review quizzes during post – grade is averaged
Regents Exam – 6/20
12:00pm – 3:00 pm
Period 2 – Rm 219
Period 4 – Rm 220
Period 8 – Rm 222
6/16 do now
• The diagram shows a ball thrown toward the east and upward at
an angle of 30° to the horizontal. Point X represents the ball's
highest point. [Neglect friction.]
a. What is the direction of the ball's velocity at point X?
b. What is the direction of the ball’s net force at point X?
c. What is the direction of the ball’s acceleration at point X?
6/16 Objectives
• Happy Last Day of the school Year! Thanks to all who worked hard all
year!
• Tests correction/new review tests – please, please ask for help if you have
questions!!!!
• Homework:
– 5 Castle learning assignments – REVIEW FOR REGENTS due 6/20
• RETURN YOUR TEXT BOOKS.
Please come for extra help if you can
•
•
•
•
Tuesday – all day
Wednesday – 12:30 – 2:30
Thursday – 8:00 – 11:00
Friday – 8:00 – 11:00
Regents Exam – 6/20
12:00pm – 3:00 pm
Period 2 – Rm 219
Period 4 – Rm 220
Period 8 – Rm 222
Test 1, 1C
Test 2, 2C
Test 3, 3C
Please get the test from web site:
http://www.nysedregents.org/ph
ysics/
Test 4, 4C
Test 5, 5C
Test 6, 6C
Test 7
Test 8
Test 9
Test 10
Test 11
Test 12
All unfinished
tests are due 6/20
before Regents
Exam