Topic 5: Energy

If you have two objects have a charge and they push away from each other no matter how close you put them together, what hypothesis can be true?

• The first object is a positive charge and the second charge is a negative charge.

• Both charge have a negative charge and pull towards each other.

• The first object has a negative charge and the second object has a positive charge, so the objects push away.

• Both objects have the same charge and push away from each other.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which statement is true?

• An object with a positive charge will repel objects with a negative charge.

• An object with a negative charge will repel objects with a positive cahrge?

• An object with a positive charge will be attracted to an object with a positive charge.

• An object with a negative charge will be attracted to an object with a positive charge.

• None of these are true.

Tags

NGSS.MS-PS2-3

If you had a battery to a toy race car, will the energy added cause the car to move?

• Yes, because the battery's electrical energy will make the wheels turn and cause the car to move.

• Yes, because the battery's mechanical energy will make the motor run.

• No, because heat energy from the battery will change the temperature.

• No, because the light energy will change the toal mass.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A balloon after it is charged by rubbing wool on it and now sticks to the wall. What is the best explanation for this? What attracts?

• The balloon has a positive charge (+) and the wall has a positive charge (+).

• The balloon has a negative charge (-) and the wall has a negative charge (-).

• The balloon has a neutral charge (0) and the wall has a neutral charge (0).

• The balloon has a negative charge (-) and the wall has a positive charge (+).

Tags

NGSS.MS-PS2-3

If you put ice cream on warm apple pie, it starts melting. What type of energy is being used?

• Light Energy

• Heat Energy

• Chemical Energy

• Electrical Energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What material is used to best power a light bulb?

• Copper

• String

• Plastic

• Glass

When riding a bike that has reflective tape from the sun and a bell, what energy is NOT being used?

• Electrical Energy

• Mechanical Energy

• Light Energy

• Sound Energy

A circuit is usually in what shape?

• A star

• A diamond

• Ms. Swies' coffee

• A circle

In the morning, the sand on a beach is hot. At night, the sand is cool. Which statement best describes what happened?

• The heat moved down from the sand to the water.

• Nothing happened, it's still hot.

• The sand absorbed the heat and cooled off.

• The sand lost heat because the sun goes down at night.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If you're investigating sound energy by plucking rubber bands and note the length and sound of each rubber band. You observe that the longest rubber band has the lowest pitch while the smallest rubber band had the highest pitch.

Which conclusion is not supported by your information?

• Rubber bands vibrate

• All the rubber bands vibrate at the same speed

• The length of the rubber band changes the pitch

• Short rubber bands vibrate fastest

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2