Science 2.6-2.8

Question 1

The ability to do work

Answer 1

Energy

Question 2

Moving, working energy

Answer 2

Kinetic energy

Question 3

A material that is burned to release energy

Answer 3

Fuel

Question 4

Energy moved from one place to another

Answer 4

Transferred Energy

Question 5

What are sources of fuel energy?

Answer 5

Coal, oil, and natural gas

Question 6

A buildup of electrical charge

Answer 6

Static electricity

Question 7

The positive center of an atom

Answer 7

Nucleus

Question 8

A negative particle of an atom

Answer 8

Electron

Question 9

To pull together

Answer 9

Attract

Question 10

To push apart

Answer 10

Repel

Question 11

What is all matter made of?

Answer 11

Molecules

Question 12

What are molecules made of?

Answer 12

Small particles called atoms

Question 13

The spark you sometimes feel when you touch a doorknob or other object is called?

Answer 13

Static electricity

Question 14

An atom has a _____ nucleus and ______ electrons.

Answer 14

Positive, negative

Question 15

Rubbing two objects together can cause atoms to lose or gain _______.

Answer 15

Electrons, creating an imbalance

Question 16

Put in order from largest to smallest: atom electron, molecule

Answer 16

Molecule, atoms, electrons

Question 17

The flow of electrons along a path

Answer 17

Current electricity

Question 18

A machine that converts mechanical energy into electrical energy

Answer 18

Generator

Question 19

A material that can easily transfer (electrical) energy

Answer 19

Conductor

Question 20

Bundled wires, covered in plastic or another insulator

Answer 20

Cable

Question 21

A material that cannot easily transfer energy

Answer 21

Insulator

Question 22

An uninterrupted path of electricity; allows an electrical current to flow

Answer 22

Closed circuit

Question 23

An interrupted path of electricity; does not allow electrical current to flow

Answer 23

Open circuit

Question 24

T or F: A generator can make current electricity

Answer 24

True

Question 25

T or F: electricity can transfer from one place to another because of flowing ELECTRONS.

Answer 25

True

Question 26

T or F: Plastic is a good CONDUCTOR of electricity.

Answer 26

False - plastic is a good electrical insulator
Metal is a good conductor of electricity

Question 27

T or F: when you turn an electric light on, you are OPENING the circuit

Answer 27

False - closing the circuit

Question 28

T or F: a closed circuit can turn OFF a light

Answer 28

False - ON