7th Grade Test Review Question Preview (ID: 37066)
Newton And Force.
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Two people are pulling against each other each with a force of 500 N, this is an example of?
a) balanced forces
b) unbalanced force
c)
d)
Rocket engines operate on the principle of
a) action and reaction
b) inertia
c)
d)
The tendency of matter to stay in constant motion unless acted on by an unbalanced force is
a) inertia
b) momentum
c) force
d)
Motion is produced by
a) unbalanced force
b) balanced force
c)
d)
Action and reaction are
a) equal and opposite
b) equal and the same
c) unequal and in the same direction
d)
If you push on a wall with 30 N, the force acting on you is
a) 30 N
b) 0 N
c) 10 N
d)
Force equals mass times
a) Acceleration
b) Mass
c) Velocity
d)
A rocket taking off is the example of which law
a) 1st law
b) 3rd law
c) 2nd law
d)
Pushing off the wall at the skating rink and going in the opposite direction is an example of
a) 3rd
b) 1st
c) 2nd
d)
We wear seat belts because of which law
a) 1st law
b) 2nd law
c) 3rd law
d)
Blowing up a balloon and letting go shows us which law
a) 3rd
b) 2nd law
c) 1st
d)
Who gave us the laws of motion
a) Galileo
b) Newton
c) Einstein
d)
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