Speed and Motion PS.7.1 #4

Front

What is the distance moved by an object in a unit time called?

Back

Speed

Front

What formula is used to calculate speed?

Back

Speed = Distance / Time

Front

True or False: All objects travel at a constant speed.

Back

False

Front

What is speed?

Back

The rate at which we move.

Front

What is the most common reference point for measuring motion?

Back

Earth's surface

Front

What is acceleration?

Back

The rate of change of speed or velocity.

Front

If an object’s speed increases, what is happening to its motion?

Back

The object is accelerating.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What unit is commonly used to measure speed?

Back

Meters per second (m/s) or kilometers per hour (km/h).

Front

What does a speedometer measure?

Back

The speed of a vehicle.