Question 1

If you rub your hands together, you may feel heat.  Why is this true?

Accepted Answer

The sliding friction creates heat.

Answer

The friction causes your hands to lose heat.

Answer

The air resistance creates heat.

Answer

None of these

Question 2

Which most accurately describes gravitational forces?

Accepted Answer

Gravity pulls objects toward the center of Earth due to Earth's mass.

Answer

Gravity pushes objects toward the center of Earth due to Earth's mass.

Answer

Gravity pushes objects away from the center of Earth due to Earth's mass.

Answer

Gravity pulls objects away from the center of Earth due to Earth's mass.

Question 3

The greater a force on an object, the greater the change in which of the following?

Accepted Answer

Motion

Answer

Gravity

Answer

All of these

Answer

Phase change

Question 4

Motion can be measured by observing the _____________traveled in a certain amount of _________________.

Accepted Answer

distance: time

Answer

time: energy

Answer

time; friction

Answer

friction; time

Question 5

What occurs as two surfaces rub against each other or make contact with one another?

Accepted Answer

Friction

Answer

Direction

Answer

All of these

Answer

Motion

Question 6

What type of graph can most closely show the distance an object has traveled in a given amount of time?

Accepted Answer

Distance-time graph

Answer

Pie Chart

Answer

Bar graph

Answer

None of these

Question 7

A push or pull that changes the motion of an object is called?

Accepted Answer

A force

Answer

Mass

Answer

Work

Answer

Distance

Question 8

Which object would fall through the air at the greatest rate?

Accepted Answer

A bowling ball

Answer

There is not enough information to determine which would fall at the greatest rate.

Answer

A ping pong ball

Answer

A tennis ball

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