Motion, Force, and Energy Test Review

Motion is caused by a ______________. A push or pull causes a change in position which can be compared to a _________________.

• Magnetism, Force

• Force, Reference Point

• matter, Distance

• Contact, Distance

Balanced forces work in ___________________ directions while __________________ forces work together to cause or stop motion.

• Unbalanced, opposite

• Contact, Non-contact

• Opposite, Unbalanced

• Distance, Frictional,

_______________ forces do not need to touch an object in order to cause motion. An example of this is _____________________ and gravity.

• Non-contact, Magnetism

• Unbalanced, Magnetism

• Frictional, Attraction

• Magnetism, Unbalanced

The Universal Law of Gravitation states that all objects made of ______________ have a gravitational ___________________ toward each other

• Matter, Magnetism

• Mass, Force

• Mass, Contact

• Matter, Attraction

The size or ____________ of an object and the ____________________ from each other affect the gravitational force between those objects

• Distance, Attraction

• Mass, Distance

• Reference point, Force

• Distance, Matter

_______________ forces are caused by microscopic bumps and cracks making direct _______________ with another surface

• Frictional, Contact

• Unbalanced, attraction

• Frictional, Forcce

• Non-contact, Contact

A person jumping off an unanchored boat and the person goes forward while the boat goes backward. This is an example of

• Newton's First Law of Motion

• Newton's Second Law of Motion

• Action and Reaction

• Inertia

If person pushes on a box with 20 newtons of force to the right while another person pushes to the left with a 60 newton force, then what will happen to the box?

• The box will not move

• The box will move to the left

• The box will move to the right

• The box will be perpendicular to the people

What two factors affect the amount of gravitational force between two objects?

• Weight, mass

• Volume, Weight

• Distance, Mass

• Rotation, Distance

Why can you not feel the attraction of gravity between you and other small objects?

• A person doesn't exert a gravitational force

• The two gravitational forces cancel each other out

• The gravitational forces of people are so small it is overshadowed by Earth's gravity

• All the different people actually balance out all the different gravitational forces