Unit Seven Test Review

Something is considered to be in motion when its ____________ changes based upon a _____________.

• position, reference point
• object, motion

Speed is a ________; it uses a unit of time.

• time
• rate
• obstacle

Which ARE examples of acceleration? Choose ALL that apply!

• A horse adds a burst of speed and wins the race
• A ship travels at a constant speed as it crosses the Atlantic Ocean.
• A car goes around a curve.
• A train travels at a constant speed of 60 km per hour during a sight-seeing tour up a mountainside.
• A tractor-trailer hits the brakes at a stop light.

What does "SI" mean?

• Strong Individual
• The International System of Units
• Scientific Investigation

What is another name for "SI" units?

• imperial units
• metric units
• american units

Two people run at each other with exercise balls in their arms. The smaller person goes flying after they hit while the larger person stays in place. Which of Newton’s Laws does this best illustrate?

• Newton's First Law
• Newton's Second Law
• Newton's Third Law

A magician pulls a tablecloth out from under the place settings without moving any of the items on the table. Which of Newton’s Laws does this best illustrate?

• Newton's First Law
• Newton's Second Law
• Newton's Third Law

A golfer swings softly to make a putt, and the ball gently rolls into the hole. Which of Newton’s Laws does this best illustrate?

• Newton's First Law
• Newton's Second Law
• Newton's Third Law

To have done work, according to the scientific definition, you must have used ___________ to move an object a ____________

• force, distance
• work, time
• mass, force

Power is the amount of ______ done in a certain amount of ________.

• force, distance
• work, time
• mass, force