Static Electricity, Energy Transformations, and Growth Mindset

Kayla boils a pot of water. What will happen when she sticks a metal spoon that is at room temperature into the boiling water?

• Heat energy from the water will flow to the metal spoon, causing the spoon to increase in temperature

• The metal spoon will soak up the boiling water, causing the spoon to increase in temperature.

• Heat energy from the boiling water will cause the spoon to dissolve.

• Heat energy from the metal spoon will flow into the water, causing the spoon to decrease in temperature.

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NGSS.MS-PS1-4

NGSS.MS-PS3-3

Electrical energy can produce many other types of energy.

When electricity runs through an electric stove, what other type of energy is produced?

• heat energy

• chemical energy

• sound energy

• mechanical energy

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NGSS.MS-PS1-4

NGSS.MS-PS3-3

Paul walks across a carpeted room in his socks. As he walks, he drags his feet along the carpet.

Shortly afterward, Paul touches a doorknob and feels a "shock." What has caused the shock?

• a sharp object stinging his finger

• light particles hitting his finger and the doorknob

• charged particles repelling each other

• charged particles moving from his body to the doorknob

How is static electricity produced?

• magnetic fields

• electrical discharge

• friction

• electrical current

The picture shows two electrically charged objects.

What will happen to the two objects in the picture as they are slowly moved toward each other?

• The objects will both be pushed in the same direction.

• The objects will not affect each other.

• The objects will push away from each other.

• The objects will be pulled toward each other.

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

A balloon that has been rubbed on wool has a negative charge. When the balloon is held over—but not touching—some bits of paper, some of the bits jump up to the balloon.
Why does the paper move?

• A charged object can only push against other objects.

• Some wind must have blown the paper.

• All balloons are magnets that can pull on plastic or paper without touching it.

• A charged object can make other objects move without touching them.

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

What will happen to the two objects in the picture as they are slowly moved toward each other?

• The objects will push away from each other.

• The objects will be pulled toward each other

• The objects will not affect each other.

• The objects will both be pushed in the same direction.

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Jessica's family decorated their house for the holidays. When they were finished, Jessica plugged in a string of lights they had put up.

When she plugged the lights in, what traveled through the electrical cord and created an electric current?

• hot air

• electric charges

• chemicals

• sound vibrations

Angie rubbed a balloon on her head. This caused her hair to become positively charged.

What happens to Angie's hair when it is positively charged?

• The hairs attract each other.

• The hairs fall out of her head.

• The hairs get longer.

• The hairs repel each other.

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Static electricity is the buildup of electric charges. Which of the following is an example of a natural discharge of static electricity?

• ocean waves

• lightning

• Earth's magnetic poles

• northern lights

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NGSS.MS-PS2-3