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Force, Motion, And Simple Machines
Test Description: 2nd grade physics
Instructions: Answer all questions to get your test result.
1) What is force?
A
To push something
B
To fall towards the Earth
C
A sloping ramp
D
The power to move an object or change its direction
2) What is gravity?
A
The pull of objects to the earth
B
To be able to move an object
C
To keep something from moving smoothly
D
To float in space
3) What happens to a ball if you toss it.
A
It floats away
B
It doesn't move
C
It keeps moving
D
It falls to the ground
4) Without gravity we would?
A
float away
B
fall over
C
be able to jump higher
D
nothing would change
5) What does friction do?
A
It keeps a force from happening
B
helps things move faster
C
It allows things to float
D
It stops gravity
6) This simple machine has a slope?
A
wheel and axel
B
inclined plane
C
catapult
D
screw
7) This simple machine has a bar and fulcrum?
A
inclined plane
B
gravity
C
wheel and axle
D
lever
8) What simple machine has a pivot point that allows it to move?
A
lever
B
pulley
C
wheel and axle
D
inclined plane
9) Why can astronauts float in space?
A
there is gravity in space
B
they weight less
C
there is no gravity in space
D
they have special machines
10) What caused the acorn to fall down and hit chicken little in the head?
A
force
B
work
C
gravity
D
friction
*select an answer for all questions
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