Science: Ch. 9 Review

____ is the ability to make something move.

• Mechanical energy
• Motion
• Chemical Energy
• Inertia

A fixed unmoving object or location is ______.

• potential energy
• a joule
• a reference point
• effort force

____ is the change of an object's position.

• Kenetic energy
• Motion
• Speed
• Resistance

The ____ of an object is determined by its mass and velocity.

• inertia
• effort force
• momentum
• stored energy

____ occurs whenever an object speeds up, slows down, or changes direction.

• Momentum
• Inertia
• Friction
• Acceleration

The resistance to a change in motion is called______.

• interia
• friction
• effort force
• velocity

Choose the word that best describes the example. Henry usually runs about 7.5 miles per hour (mi/hr)

• acceleration
• distance
• speed
• velocity

Choose the word that best describes the example. On the day of the race, Henry ran along the track toward the east at 7.5 miles per hour(mi/hr)

• acceleration
• distance
• speed
• velocity

Choose the word that best describes the example. The runner at the front of the race suddenly stumbled over a piece of gravel. His speed slowed.

• acceleration
• distance
• speed
• velocity

Choose the word that best describes the example. Henry increased his speed, passed the runner, and won the race.

• acceleration
• distance
• speed
• velocity