Chapter 6 Science Electricity

Question 1

A flow of electrical charges is..

Answer 1

electric current

Question 2

All the electrical charges flow in the same direction along the same path

Answer 2

series current

Question 3

The buildup of electrical charges on an object is called

Answer 3

static electricity

Question 4

stops the flow of charges by switching off the current if it gets too high

Answer 4

circuit breaker

Question 5

Transformers

Answer 5

used to chafe the voltage of electric current

Question 6

voltage

Answer 6

the strength of a power source

Question 7

Fuse

Answer 7

melts and breaks the circuit if the electric current in any part of the circuit gets too high.

Question 8

conductors

Answer 8

materials that let charges flow through them easily

Question 9

parallel circuit

Answer 9

a circuit in which the electric current follows more that one path

Question 10

resistance

Answer 10

the ability of a substance to oppose or slow down electric current

Question 11

Electrical enerty travels from a power station through

Answer 11

wires and transformers

Question 12

plugging too many devices into one circuit can cause low resistance in the surge protector True or False?

Answer 12

False

Question 13

Name an example of static electricity

Answer 13

lightening

Question 14

what is a path of little resistance sometimes called

Answer 14

short circuit

Question 15

electric current cannot flow in an open circuit True or False?

Answer 15

True

Question 16

Whey is it important to use electricity safely?

Answer 16

It can cause burns, shocks and even start fires

Question 17

What would happen if your body had a balanced number of charges and you touched a negatively charged object?

Answer 17

You would get shocked.

Question 18

You are investigation circuits using a D cell battery. How is a series circuit different from a parallel circuit?

Answer 18

In a series circuit it does not flow if it is turned off. In a parallel circuit it will find the other path, so it will not stop the flow.

Question 19

You plug in a string of patio lights and notice that one bulb is missing. Infer whether the lights are connected in a parallel circuit or in a series circuit?

Answer 19

If lights are on it is a parallel circuit. If the lights are off it is a series circuit

Question 20

What can make you get and electric shock when you touch something?

Answer 20

Negative charges can build on al object and then flow into your body when you touch it.

Question 21

How does an object get an electric charge?

Answer 21

An object gets an electric charge by gaining or losing a negative charge.