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Motion And Forces Assessment Review
Test Description: Motion and Forces Assessment Review
Instructions: Answer all questions to get your test result.
1) Which car in a race has the lowest average speed?
A
the car that crosses the finish line second
B
the car in the middle of the pack
C
the car that is behind all the others
D
the car that is in front of all the others
2) What information is needed to estimate the amount of potential energy of an object on a shelf?
A
the mass of the object and the height of the shelf
B
the volume and mass of the box
C
the mass of the shelf and mass of the box
D
the volume of the box and height of the shelf
3) How do you know whether or not a person is working?
A
by how long they are standing on the job
B
by if they are moving an object
C
by how long they are sitting on the job
D
by how fast they are walking
4) When does an object have the least amount of kinetic energy?
A
before it starts
B
when it changes directions
C
when it is falling
D
when it stops
5) How does a can opener make it easier to open a can?
A
it increases the force applied to the can
B
the amount of gravity acting on the can increases
C
the surface area of the can decreases
D
the friction keeping the can sealed decreases
6) Which simple machine increases the distance over which a load travels and reduces the needed force?
A
inclined plane
B
wheel and axle
C
wedge
D
pulley
7) Which simple machines are used to form a wheelbarrow?
A
wheel and axle, lever
B
wedge, wheel and axle
C
inclined plane, wedge
D
lever, pulley
8) Which simple machine is most efficient for lifting objects high off the ground?
A
lever
B
screw
C
wedge
D
pulley
9) The amount of work done on an object is obtained by multiplying
A
force and distance
B
x and y
C
accelration and velocity
D
input force by output force
10) The rate at which work is done is called
A
mechanical advantage
B
power
C
joule
D
strength
*select an answer for all questions
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