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7.MS-PS3-1
Test Description: 7MS-PS3-1
Instructions: Answer all questions to get your test result.
1) Which is the best example of an object with kinetic energy?
A
a car parked on top of a hill
B
a ball rolling down a hill
C
a picture hanging on a wall
D
a piece of wood before it has burned
2) When graphing speed, which is always the dependent variable?
A
distance
B
speed
C
time
D
kinetic energy
3) When slope increases on a speed graph (distance by time), what does that show?
A
the object is speeding up
B
the object isn't moving
C
the object is slowing down
D
the object is going up a hill
4) When looking at a speed graph, how do you calculate the object's average speed?
A
look at its midpoint only
B
find the difference between its starting and final speeds
C
look at its end point only
D
calculate its speed at many points and then average them together
5) When calculating kinetic energy, what two things must you know?
A
speed and time
B
distance and time
C
speed and mass
D
distance and mass
6) As an object moves faster, what happens to its kinetic energy?
A
it doesn't change
B
it depends on where it is in the universe
C
it increases
D
it decreases
7) Which most likely has more kinetic energy?
A
a dog running down the road
B
a big truck going down the road
C
a small car going down the road
D
a bicycle going down the road
8) You look up and see a cloud to the left of a tree. Then you look again and it is to the right of the tree. Which is the reference point?
A
the wind
B
the tree
C
the air
D
the cloud
9) Which of the following is NOT a unit for speed?
A
gallons per second
B
centimeters per hour
C
inches per year
D
miles per day
10) Which of the following is a unit of energy?
A
Joule
B
kinetic
C
meters per second
D
kilograms
*select an answer for all questions
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