Science Chapter 16 question Flashcards

1
Q

The buildup of charges on an object

A

static electricity

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2
Q
Which of these is a conductor?
A. copper
B. glass
C. plastic
D. wood
A

A.

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3
Q

What causes the ballon to repel each other?
F. Neither balloon has a charge.
G. The red ballon is positive and the blue balloon is negative.
H. The red ballon is positive and the blue balloon is neutral.
J. Both ballons have the same charge.

A

J.

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4
Q
What is the path that electric current follows called?
A. an insulator
B. an electric circuit
C. potential energy
D. kinetic energy
A

D.

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5
Q
Tai walked across a carpet and felt a shock when she touch the doorknob. What cause is this?
F. The knob was an electromagnet.
G. The door knob was an insulator.
H. Tai developed a static charge.
J. The carpet was a conductor.
A

H.

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6
Q
What device is used to start and stop the flow of electric current in a circuit?
A. a battery
B. an electromagnet
C. a motor
D. a switch
A

D.

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7
Q
When a microwave oven's timer beeps, to what kind of energy is electricity being changed?
A. heat
B. light
C. motion
D. sound
A

D.

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8
Q
Which appliance cost the most use for half hour?
F. a 1200-watt hair dryer
G. a 110-watt TV
H. A 1000-watt vacuum cleaner
J. a 75-watt
A

H.

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