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