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Force And Motion
Test Description: Review for test
Instructions: Answer all questions to get your test result.
1) What is acceleration?
A
speeding up
B
speeding up, slowing down, or changing directions
C
changing directions
D
slowing up
2) What is friction?
A
it is a force that pushes things apart
B
it is force that will slow the movement of an object
C
it is a force that pulls things together
D
it is another definition for inertia
3) A box is pushed in a straight line. How would an INCREASE in friction affect the motion of the box?
A
it would cause the box's mass to change
B
it would cause the box to change direction
C
it would cause the box to be easier to push
D
it would cause the box to be harder to push
4) A student measures how long it took her to run 100 meters. Which of the following can she calculate from the distance and time measurements?
A
speed
B
direction
C
force
D
mass
5) Which BEST explains why a car slows down when the brakes are applied?
A
The brakes heat up the rubber on the car's tires
B
The brakes cause frictional forces on the tires of the car
C
The brakes increase the force of gravity on the car
D
The brakes add energy to the car
6) An animal that eats plants and animals is a(n)
A
producer
B
carnivore
C
consumer
D
decomposer
7) A baseball if thrown into the air. What is most responsible for it falling back to the ground?
A
gravity
B
mass
C
air
D
friction
8) A ball is kicked rolls along a level field until it comes to a stop. What is most responsible for the ball coming to a stop?
A
mass
B
air
C
friction
D
gravity
9) Zach is walking backwards through the hallway. Can his speed be calculated?
A
No, we can only measure speed going forward
B
No, we can not measure negative distance traveled
C
Yes, because we can measure how far he traveled in a certain time
D
Yes, because friction is slowing him down
10) What causes a bicycle to speed up when going down a hill?
A
mass
B
friction
C
air pressure
D
gravity
11) A force can....
A
make an object change directions
B
make an object move
C
all of the above
D
make an object stop moving
12) What is the relationship between evaporation and transpiration?
A
They both cause precipitation
B
They have nothing to do with one another
C
They both return water to the atmosphere
D
They both change water vapor into liquid water
13) Four balls, each with a different mass, are traveling at the same speed. Which ball would require the MOST force to stop its motion?
A
a ball with a mass of 8 kg
B
a ball with a mass of 16 kg
C
a ball with a mass of 24 kg
D
a ball with a mass of 2 kg
14) Andy lives in the Southern Hemisphere and has summer when we in North Carolina are having winter. What is that?
A
because we can't all have the same seasons all the time
B
because the Southern Hemisphere is tilted toward the sun while we are tilted away from the sun
C
because the Southern Hemisphere always has summer, never winter
D
because we are different distances from the sun
15) What must happen for a ball to be thrown in the air?
A
The force exerted on it must be less than the force of gravity
B
The force of exerted on it must be equal to the force of gravity
C
The force of gravity must be stronger than the force exerted on the ball
D
The force exerted on it must be greater than the force of gravity
16) Mrs. Davila biked 40 miles in 2 hours. What was her average speed?
A
20 miles per hour
B
30 miles per hour
C
7 miles per hour
D
2 miles per hour
17) A dump truck and a car are pushed with an equal force. Which of the following is true about the motion of the two vehicles?
A
The dump truck will travel a longer distance because it has less mass
B
The car will travel a longer distance because it has more mass
C
the dump truck will travel a shorter distance because it has more mass
D
The car will travel a shorter distance because it has more inertia
18) Which of the following is the best example of DECREASED friction?
A
Rubbing your hands together to keep them warm
B
Oiling a squeaky door so the parts move against each other easily
C
Using gritty sandpaper to sand a rough board
D
A parachute slowing a sky diver down
19) An apple is sitting on a desk. Which is the most likely reason it does not move?
A
there is no gravity
B
the forces are balanced
C
there are no forces
D
the forces are unbalanced
20) Which of the following is NOT an example of radiation?
A
heat and light coming from a fire in the fireplace
B
microwaving popcorn
C
a light bulb glowing
D
a person burning their hand on a hot stove
*select an answer for all questions
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