3.8B Mechanical Energy & Speed

Front

What is mechanical energy?

Back

Mechanical energy is the energy that an object has due to its motion (kinetic energy) or its position (potential energy).

Front

What is speed?

Back

Speed is a measure of how fast something moves over a certain distance.

Front

Which has more mechanical energy: a ball rolling down a hill or a ball resting on the field?

Back

A ball rolling down a hill has more mechanical energy.

Front

What is an example of something with no mechanical energy?

Back

A ball resting on the field.

Front

What tool can be used to measure speed?

Back

A speedometer can be used to measure speed.

Front

What happens to the speed of a skateboarder going down a steeper ramp?

Back

The skateboarder goes faster down a steeper ramp.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has because it is moving.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or condition.

Front

Which has the least speed: a motorcycle on the highway or a turtle crossing the field?

Back

A turtle crossing the field has the least speed.

Front

What is the relationship between speed and distance?

Back

Speed is calculated by dividing the distance traveled by the time taken.