Force and Energy Review

What is energy?

• The use of a force to move an object over a distance

• How well a material conducts an electric current

• a push or pull

• the ability to cause a change or do work

Which device uses electric current to intentionally produce light?

• Microphone

• Blow Dryer

• Lamp

• Toaster

A thin strip of metal foil has a negative electric charge. You bring a balloon that also has a negative charge near the foil. What will MOST LIKELY happen?

• The foil will bend toward the balloon

• The foil will bend away from the balloon

• The balloon will cause the foil to have a positive charge

• The foil will cause the balloon to have a positive charge

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Energy you can hear is what kind of energy?

• Sound

• Nuclear

• Electromagnetic

• Light

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of the following is an example of a force?

• Gravity

• Chemical energy

• A proton

• Light

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-4

What causes the hair and balloon to behave as they do in the picture above?

• Lightning

• Household electricity

• Static electricity

• Magnetic force

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which object can BEST conduct an electric current?

• A rubber band

• A copper nail

• A strip of cardboard

• A wooden toothpick

Which of the following is the term for any complete loop through which electric current flows successfully?

• Parallel circuit

• Series circuit

• Closed circuit

• Open circuit

The more mass an object has, the

• less work the object can do

• more work the object can do

• less effect a force will have on the object's motion

• more effect a force will have on the object's motion

Tags

NGSS.HS-PS2-1

What energy change happens when you burn gas to run a lawn mower?

• electrical energy turns into chemical energy

• chemical energy turns into mechanical energy

• electrical energy turns into sound energy

• chemical energy turns into light energy

Tags

NGSS.MS-PS3-5