Science U3.3: Circuits and Electricity

Which material would be the BEST conductor?

• cotton

• rubber

• iron

• plastic

Tags

NGSS.MS-PS2-3

What is the energy transfer that is occurring when you turn on a ceiling fan?

• Mechanical energy is changing into electrical energy, which lessens the amount of thermal energy.

• Electrical energy is changing to mechanical energy, which lessens the amount of thermal energy.

• Electrical energy is changing to thermal energy, which causes the fan to move (mechanical energy).

• Mechanical energy is changing into thermal energy, which causes the fan to move (mechanical energy)

• Gertrude does what Gertrude wants.

Tags

NGSS.MS-PS3-5

If Miley rubs a balloon on her head, the hairs attract closer to the balloon. Why?

• The hairs have the same electrical charge as the balloon

• The balloon is neutral, and the hairs are positive.

• The balloon is neutral, and the hairs are negative.

• The hairs and balloon have opposite charges.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

a campfire uses chemical energy to create thermal energy, whereas an oven uses ___________ energy to create thermal energy.

• electrical

• chemical

• mechanical

• light

Tags

NGSS.MS-PS3-4

A motor is connected to a circuit with a D battery and two wires. To get the motor running, we need a _______ circuit.

Mr. Stincer is creating a circuit with a battery, wire, switch, and a light bulb. He realizes his wire (conductor) is too short. What material can he use to make the circuit a closed circuit to turn on a light bulb?

• A wooden spoon

• A metal paper clip

• A Twizzler candy

• plastic or nylon rope

My uncle got REALLY angry at Thanksgiving and threw the overcooked turkey through a glass window, shattering it. What TWO forms of energy are being displayed?

• mechanical

• electrical

• thermal

• sound

• chemical

Tags

NGSS.MS-PS3-5

A metal can is being pushed away from a charged balloon. These charges are _______ and _______.

Later, we noticed a different metal can is drawing towards the balloon. These charges are ______ and _____.

(Select only ONE answer)

• Positive and positive; negative and negative

• negative and negative; positive and positive

• neutral and positive; neutral and negative

• negative and positive; positive and negative

• positive and positive; negative and positive

Tags

NGSS.MS-PS2-3

Tessanderson listens to music on his iPhone while being taught online instruction in science instead of listening to his teacher. What is the energy transfer that is occurring?

• electrical to sound

• light to sound

• sound to electrical

• mechanical to sound

True or False: electricity cannot flow unless there is a LOAD such as a light bulb or fan present in the circuit.

• True

• False

Tags

NGSS.MS-PS3-4