Test Review - 8.1 Lessons 1-9

Front

What is constant speed?

Back

Constant speed refers to the speed of an object that does not change over time. An object moving at constant speed covers equal distances in equal intervals of time.

Front

Who had a constant speed in the provided scenario?

Back

Kim had a constant speed.

Front

What happens when two identical forces are applied to different objects?

Back

The acceleration of an object depends on its mass; lighter objects accelerate more than heavier ones when the same force is applied.

Front

Which object accelerates more when identical forces are applied: a basketball or a bowling ball?

Back

The basketball will accelerate more than the bowling ball.

Front

What is the role of sensors in the sense of touch?

Back

Sensors in the skin detect different feelings like pain and temperature.

Front

How do you calculate distance using speed and time?

Back

Distance = Speed × Time.

Front

If a softball takes 2 seconds to reach home plate at 66 ft/s, what is the distance?

Back

The distance is 132 feet.

Front

What happens to peak forces in a collision if speed or mass increases?

Back

The peak forces increase.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be caused by a change in speed or direction.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.