Transcript survivor_1_

Do Now (12/7):
•Make a list of
concepts you need to
know for your test
tomorrow.
Ms. Timson’s
Physics Review to Conquer
Forces and Newton’s Laws
Rules of the Game
• There will be tribes, as divided by the teacher
• For each problem which appears on the slide, the tribe will be able to work
together to vote on one answer given only the time which will be written
on the slide.
• Tribes cast their answer using their voting cards only in the time allowed.
• Each team with a correct answer is allowed to cast one vote to remove
another tribe from the island. The teacher will have each tribe cast their
vote simultaneously by writing the color of the tribe they are voting for on
their white board. The teacher will then remove tribes from the island.
• The teacher will track which tribes are in and which tribes are out of the
game with signs on the board.
• If a tribe is voted out, they can reenter the game by answering the next
question correctly to reenter. They will NOT receive a vote for that question
but must wait until the next question.
• Winning tribes will be those still on the island at the end of the game.
• ***The teacher will be the final judge of any conflicts or confusions – and
remember, be respectful and be honest!
The acceleration of an object is ______ its
mass.
• a) directly proportional to the square of
• b) inversely proportional to the square of
• c) directly proportional to
• d) inversely proportional to
20 seconds
• When the net force acting on an object is
zero, the object will stay at rest or at
constant velocity.
This statement corresponds to Newton's
_____ law.
a) 1st
b) 2nd
c) 3rd
d) 4th
10 seconds
8N
5N
• Calculate the net force
a) 13N
b) 3 N
c) -13 N
d) -3 N
30 seconds
8N
5N
• Calculate the acceleration if the mass is 1.5 kg
a) 3 m/s2
b) 2 m/s2
c) 4.5 m/s2
d) 1.5 m/s2
40 seconds
8N
8N
This object is:
a) accelerating
b) In equilibrium
c) unbalanced
40 seconds
A ball is rolling to a stop on a pool table. What are
the forces acting on the ball?
a) Applied force, friction, gravity, normal force
b) friction, gravity, normal force
c) gravity, normal force
d) Applied force, gravity, normal force
40 seconds
• If you throw a bowling ball while standing on a
skateboard, you will roll backwards.
This statement corresponds to Newton's _____ law.
a) 1st
b) 2nd
c) 3rd
d) 4th
30 seconds
• 41)When unbalanced forces act upon a object, the
object will accelerate in the direction of the force.
This statement corresponds to Newton's _____ law.
a) 1st
b) 2nd
c) 3rd
d) 4th
1 minute
• If you’re standing (facing forward) on a
forward-moving flat wagon that stops
suddenly, you will:
a) move backwards
b) b) move forwards
c) remain stationary with respect to the
wagon
30 seconds
The acceleration due to gravity:
• a) is constant for all planets
• b) varies slightly over the Earth's surface
• c) is constant over the Earth's surface
10 seconds
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The SI unit for acceleration is:
a) Newton
b) kgm/s2
c) m/s
d) m/s2
10 seconds
One Newton is equivalent to:
a) 1 kgm/s2
b) b) 1 kgm2/s2
c) c) 1 m/s2
d) d) - 9.8 m/s2
15 seconds
If a quarter & a feather were dropped in a
vacuum (no air resistance):
• a) the quarter reaches the bottom first
• c) the feather reaches the bottom first
• b) both reach the bottom at the same time
• d) the quarter drops twice as fast as the
feather
2 minutes
• The net force that is required to give a mass
of 60-kg an acceleration of 8 m/sec2 is ____
• A) 7.5 N
• B) 9.8 N
• C) 480 N
• D) 950 N
1 minute
vector representing the sum of two or more
vectors is called the _______ .
•
A) addend
• B) component
• C) equilibrant
• D) resultant
•30 s
If Fnet , the vector sum of all forces acting on
an object, is not equal to zero then the
object _____ .
• A) has no inertia
• B) has uniform velocity
• C) is in equilibrium
• D) will accelerate
20 seconds
The slope of a position–time graph is
equal to:
A. The distance
B. The position
C. The acceleration
D. The velocity
20 seconds
• In a friction experiment, a horizontal force
of 25 N was needed to keep a 15 kg object
sliding at constant speed over a horizontal
surface.
– Calculate the coefficient of friction m.
– What applied force is required to accelerate the
object at 2.0 m/s2?
20 seconds
Congratulations!
Good luck tomorrow!
I know you can conquer your
test 