PRETEST: Motion, Forces, Work, Energy & Heat

_______________ is a change in velocity.

• Speed

• Acceleration

• Distance

• Force

If you double the amount of ___________ , the amount of acceleration doubles.

• speed

• acceleration

• force

• distance

An ice skater can glide because there is very little ___________ between the ice skates and the ice.

• friction

• net force

• acceleration

• velocity

The closer two objects are to each other, the stronger the ___________ between them.

• gravitational force

• air resistance

• magnetic force

• gravitational pull

As gravity pulls a book on a table _________, the table exerts an equal and opposite force on the book.

• downward

• upward

• gravitational force

• moves

All the forces acting on an object make up _______________.

• net force

• acceleration

• mass force

• friction force

Gravity depends on __________ and distance.

• mass

• friction

• time

• speed

Speed depends on _________ and distance.

• mass

• time

• acceleration

• force

___________ is the ability to do work.

• Energy

• Force

• Work

• Moving

_____________ energy is stored.

• Kinetic

• Potential

• Work

• Movement