Ch. 8 part b

Question 1

TRUE OR FALSE
Static electricity occurs when a circuit and a power source allow electrons to move.

Answer 1

FALSE

Question 2

TRUE OR FALSE
Current electricity is produced when charges build up on the surface of an object

Answer 2

False

Question 3

TRUE OR FALSE
Plastic, wood, and glass are good insulators.

Answer 3

TRUE

Question 4

TRUE OR FALSE
A switch is a conductor that can be moved to bridge the gap or not bridge the gap in a circuit.

Answer 4

TRUE

Question 5

TRUE OR FALSE
Magnetic force is strongest at the middle of the magnet.

Answer 5

False

Question 6

TRUE OR FALSE
The area of magnetic force around a magnet is called the magnetic field.

Answer 6

TRUE

Question 7

TRUE OR FALSE
Integrated circuits signal information by opening and closing electrical circuits in sequence.

Answer 7

TRUE

Question 8

TRUE OR FALSE
The brain of the computer that tells the other parts of the computer what to do is called the central processing unit (CPU)

Answer 8

TRUE

Question 9

Which unit measures how much current flows through a given part of a circuit in one second?
a. ampere
b. volt
c. joule
d. watt

Answer 9

a. ampere

Question 10

Which unit measures the amount of electrical push, or force, in a circuit?
a. ampere
b. volt
c. joule
d. watt

Answer 10

b. volt

Question 11

Explain why buildings have electrical wiring arranged in parallel rather than series circuits.

Answer 11

If the wiring of an entire building is on a series circuit, every time a break in the circuit occurred, every electrical device would stop working. A problem in a series circuit is harder to find than one in a parallel circuit.