energy - whole KO

Question 1

What is work done measured in?

Answer 1

Joules (J)

Question 2

What is the equation for work done?

Answer 2

work done = force x distance

Question 3

What is the equation for kinetic energy?

Answer 3

kinetic energy = 0.5 x mass x vepocity squared

Question 4

What is the equation for efficiency?

Answer 4

efficiency = useful output energy transfer divided by total input energy transfer

Question 5

What is the equation for gravitational energy?

Answer 5

gravitational energy = mass x gravitational field strength x height

Question 6

Kanetic

Answer 6

Moving objects

Question 7

Name the 3 energy transfers

Answer 7

Mechanical, electrical, heating

Question 8

Nuclear

Answer 8

The nucleus of an atom releases energy

Question 9

Elastic potential

Answer 9

Things are stretched

Question 10

What is the equation for power?

Answer 10

power = energy divided by time

Question 11

Magnetic

Answer 11

Magnets that attract or repel

Question 12

Thermal

Answer 12

All objects have thermal energy

Question 13

Chemical

Answer 13

Anything that can release energy during a chemical reaction

Question 14

What is the conservation of energy?

Answer 14

Energy can neither be created or destroyed