Energy Stores and Systems A1

Question 1

What is kinetic energy?

Answer 1

Moving object.

Question 2

What is chemical energy?

Answer 2

When an element fuses.

Question 3

What is internal energy?

Answer 3

Heat/thermal.

Question 4

What is gravitational potential energy?

Answer 4

Higher=more.

Question 5

What is magnetic energy?

Answer 5

When an object attracts or repels.

Question 6

What is electro static energy?

Answer 6

Magnetic pull.

Question 7

What is elastic potential energy?

Answer 7

The more elastic.

Question 8

What is nuclear energy?

Answer 8

Energy stored within an atom.

Question 9

What is a system?

Answer 9

An object or a group of objects that interact while moving.

Question 10

Energy is measured in…

Answer 10

Joules (J)

Question 11

Example of an energy transfer…

Answer 11

A flagellum on a grandfather clock transfers between gravitational potential and kinetic energy.

Question 12

1 KG =

Answer 12

1000J (J x 10^3)

Question 13

1 MJ =

Answer 13

1,000,000J (J x 10^6)

Question 14

mJ=

Answer 14

Millijoule.

Question 15

MJ=

Answer 15

Megajoules.

Question 16

Cannot store…

Answer 16

Light energy - given off

Electricity- (requires generator) flows through wires. Requires chemical energy.

Question 17

If a ball is falling, what is the energy transfer from 90J?

Answer 17

Potential store:       Kinetic store: 
90J                          0J 
60J                          30J
30J                          60J
0J.                           90J