Transcript Daily Science Warm-up

Daily Science
Warm-up
2015-2016
Eagle Block
3
2
5
6
1
4
Procedures
 Write
question and the answer you think it is
 EXAMPLE: Multiple Choice (not all are multiple
choice)

What is the day?
a)
b)
c)
d)
Monday
Tuesday
Wednesday
Friday
YOU WOULD WRITE and then one of the answers.
“I choose d) Friday”
Quantitative data
Qualitative data
nd
2
Nine Weeks
Force and Motion
(Review)
Average speed is total
distance/time; constant speed
means speed does not change.
distance = time x speed
d = 120 min x 0.10 m/s d = 12 km
Static Friction
Rocket thrusts-action; Rocket
propelled forward reaction.
Calculate
What is the speed of a cheetah that travels 112.0
meters in 4.0 seconds?
There are 1,609 meters in one mile. What is this
cheetah’s speed in miles/hour?
Compare
The differences between
speed and velocity
net
An object accelerates when its velocity changes
as a result of increasing speed, decreasing speed,
or a change in direction.
aa== VV
f-V
i i
f-V
tt
a=
22 m/s – 4 m/s
3 rapidly
seconds
A roller coaster car
picks up speed as it
rolls down a slope. As it starts down the slope,
its speed is 4 m/s. But 3 seconds later, at the
bottom of the slope,2its speed is 22 m/s.
a=
6 m/s
What is its acceleration?
a = Vf-Vi
t
2nd
mass
distance
rd
3
Nine Weeks
Electricity and Magnetism
(Review)
th
4
Nine Weeks
EOG
(Review)
S8CS3 Analyze Data
Warm up #1
Which object below would most appropriately have its mass and
volume measured in kilograms and cubic feet, respectively?
A)
Bed
B)
Mouse
C)
Trash Can
D)
Cup of Water
S8CS1 Hypotheses
Warm up #2
All hypotheses are valuable, even if they turn out not to be true.
Which answer does NOT support this statement?
A)
An incorrect hypothesis means the experiment failed.
B)
An incorrect hypothesis might lead to an alternative
hypothesis.
C)
An incorrect hypothesis might reveal flaws in the
experimental method.
D)
An incorrect hypothesis might lead to a better
understanding of the phenomenon being studied.
S8CS2 Safety
Warm up #3
Which is correct lab safety?
A)
Rodney wafted the fumes produced during the reaction
toward his nose.
B)
Andrew heated the test tube towards himself in order to
better observe the reaction.
C)
Kadie was aware of the lab procedures that day so she
began the lab before the rest of the class to be sure she
would finish.
D)
Suzanne did not use all of the sulfuric acid she poured
out for the experiment, so she returned the remainder to
the stock bottle.
Warm up #4
The picture lists light waves
from left to right in order of
highest to lowest energy.
Which region of the
electromagnetic spectrum has
the longest wavelength?
A)
UV
B)
Gamma Rays
C)
Radio Waves
D)
Visible Light
Warm up #5
S8P2.b. Potential And Kinetic Energy
A roller coaster at an amusement park goes from the top of
a tall hill to the bottom. During this time, the roller coaster
A) gains both potential and kinetic energy
B)
loses both potential and kinetic energy
C) loses kinetic energy and gains potential energy
D) loses potential energy and gains kinetic energy
Warm up #6
(S8P3.b.) Balanced And
Unbalanced Forces
Describe the motion of the box.
A)•
The box will not move.
B)
The box will move to the left.
C)
The box will move to the right.
D)
The box will move to the left and then the right.
S8P2.c. Different Forms Of Energy
Warm up #7
Maria’s father started a fire in the fireplace. He crumpled some
paper, lit a match, and soon the logs in the fireplace were burning.
In this case, the stored chemical energy in the logs was changed
into
A)
electrical energy.
B)
mechanical motion.
C)
heat and light energy.
D)
electrical and heat energy.
•
Warm up #8
(S8P4.a.) Wave Characteristics
If a satellite or spaceship explodes in outer space, you
can see the explosion from a distance but you cannot
hear it. Why?
A)
Light waves travel very fast and sound waves travel
much slower.
B)
Sound waves transmit energy while light does not
transmit energy.
C)
Sound is a mechanical wave and needs a medium
to travel through while light is an electromagnetic
wave.
D)
Light is a mechanical wave and needs a medium to
travel through while sound is an electromagnetic
wave.
Warm up #9
(S8P4.b) Behavior Of Light Waves
What allows objects that do
not make their own light
able to be seen?
A) absorption
B) diffraction
C) reflection
D) refraction
Warm up #10
(S8P1.f.) Elements In The Periodic Table
These three members of the Noble gas family all have
one property in common because they are gases at room
temperature. That is they
A) are combustible.
B)
are compressible.
C) are relatively dense.
D)
have no definite shape but a definite
volume.
(S8P4.a.) Wave Characteristics
Warm up #11
Longitudinal waves compress the medium they travel
though. One example of a longitudinal wave is a
A)
sound wave.
B)
ocean wave.
C)
infrared wave.
D)
ultraviolet wave.
Warm up #12
At what point on the
hill will the car
have zero gravitational
potential energy?
A)
Half-way down the hill.
B)
At the top of the hill.
C)
At the bottom of the hill.
D)
It will never have zero gravitational potential energy
Warm up #13
A student measures the mass of an open beaker of water
and finds it to be 452 grams. The student heats the beaker
on a hot plate and allows the water to boil for 10 minutes.
After the beaker cools, the student finds the mass of the
beaker of water to be 439 grams.
Explain what caused the difference in the mass of the
beaker of water before and after boiling.
Warm up #14
The note created by a flute will increase the speed of
sound increases. When a marching band goes outside
on a cold day, what would you predict would happen to
the note played on a flute?
A)
It would decrease because the speed of sound and
temperature are proportional.
B)
It would increase because the speed of sound and
temperature are proportional.
C)
It would decrease because the speed of sound and
temperature are inversely proportional.
D)
It would increase because the speed of sound and
temperature are inversely proportional.
Warm up #15
Which two images
represent the
principle of
radiation?
A)
I and II
B)
III and IV
C)
I and III
D)
I and IV
Warm up #16
Imagine you are lifting this
block without using the
moveable pulley seen here.
How would the amount of
effort force change?
A) The force would be 100 N
B)
The force would be 150 N.
C) The force would be 500 N.
D) The force will not change, 50N
Warm up #17
Scientists tell us that the energy transformation chain in an engine
ranges from 25% to 60% efficient. Using this diagram, explain if this is
consistent with the law of conservation of energy.
A)
Yes. The chemical energy input is converted to three forms of useful
energy. The lack of efficiency is due to the construction of the engine.
B)
No. Engines do not conform to the law of conservation of energy. Some
of the chemical energy input is destroyed and is lost in the form of heat.
C)
Yes. Although the engines not 100% efficient, it does conform to the law
of conservation of energy because a lot of the energy is converted and
lost as heat.
D)
No. Energy transformations illustrated here do not conform to the law of
conservation energy. The energy input does not equal the energy out
because energy is destroyed in these processes.
Warm up #18
Examine the data
presented and find
the statement that
represents an
inference rather
than an
observation.
A)
The number of blemishes peaked on day 9
B)
On day 10 there were about 12 blemishes
C)
The blemish cream was most effective on days 4 and 5
D)
The blemishes are cyclic in their appearance and
disappearance