Energy: Unit 3

What is energy?

• The ability to do work 

• The speed of an object 

• The mass of an object 

• The color of an object

During a physics class, Avery was asked to identify an example of kinetic energy from the following. What should Avery choose?

• A rock sitting on Emma's desk

• James' car moving down the street

• Emma's cat sleeping on the couch

• A glass of still water on Avery's table

What is potential energy?

• Energy of motion 

• Stored energy 

• Energy of light 

• Energy of sound.

What does the Law of Conservation of Energy state?

• Energy cannot be created or destroyed
• Energy can be created out of nothing

• Energy can be destroyed but not created
• Energy can only be conserved in living organisms

Grace, Maya, and Anika are working on a science project. They need to measure the energy produced by their experiment. What is the unit of measurement for energy?

• Joule

• Volt

• Watt

• Ampere

What happens to energy if it is neither created nor destroyed?

• It is conserved.
• It changes color.

• It is multiplied.
• It is lost.

What is speed?

• how much space an object occupies 

• rate of how

  fast something is

  moving.

• The force of gravity on an object

What is mass?

• measure of the weight of an object.

• measure of the volume of an object.

• measure of the amount of matter in an object.

• measure of the temperature of an object.

What is height?

• measurement of how tall or high something is.

• measurement of how heavy something is.

• measurement of how deep something is.

• measurement of how wide something is.

Abigail and Kai are playing catch. If we consider the ball they are using, which two factors would impact the amount of kinetic energy the ball has while it's in motion?

• its mass and its speed

• its volume and the air pressure

• its height and its color

• its acceleration and the force applied