Gravity And Inertia Question Preview (ID: 59829)
Gravity And Inertia.
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What is gravity?
a) an invisible force that pulls objects toward each other
b) a blue force that pulls objects toward each other
c) a force that repels objects
d) a type of space rock
Name two ways that gravity can be affected.
a) by force and motion
b) by mass and distance
c) by motion and gravity
d) by distance and the moon
When two forces are the same strength but act in opposite direction, they are called _____________.
a) unbalanced strength
b) balanced gravity
c) balanced forces
d) law of inertia
Newton's first law states that if a body is at rest, it will remain at rest unless ___________________.
a) it stops
b) it starts to move again
c) it is moving very fast
d) it is acted upon by a force.
Newton's second law states that the greater the _______ of an object, the more force it will take to increase the speed of the object.
a) mass
b) inertia
c) gravity
d) speed
The law of universal ________ states that two bodies in space pull on each other with a force proportional to their masses and the distance between them.
a) forces
b) gravitation
c) motion
d) acceleration
Newton's third law states that for every action there is an __________ and _________ reaction.
a) unequal and same
b) action and force
c) equal and opposite
d) inertia and gravity
If you kick a soccer ball, it will fly forever unless some force stops it. Which of Newton's laws is this?
a) first law (law of inertia)
b) second law
c) third law
d) law of universal gravitation
When you push an object with more force as in hitting baseball ball with a lot of power, it will move faster and farther away. This is which of Newton's laws?
a) first
b) second
c) third
d) fourth
Which of the following is an example of Newton's third law (for every action in nature there is an equal and opposite reaction)?
a) Pulling an elastic band
b) rowing a boat
c) Standing on the ground or sitting on a chair
d) all of the above
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