Energy

studied byStudied by 3 people
0.0(0)
Get a hint
Hint

What is the formula for the relationship between work, force and distance moved in the direction of the force?

1 / 19

flashcard set

Earn XP

Description and Tags

20 Terms

1

What is the formula for the relationship between work, force and distance moved in the direction of the force?

work done = force x distance moved

W = f x d

New cards
2

What is the formula for the relationship between gravitational potential, energy, mass and gravitational field strength and height?

gravitational potential energy = mass x gravitational field strength x height

GPE = m x g x h

New cards
3

What is the formula for the relationship between kinetic energy, mass and speed?

kinetic energy = ½ x mass x speed²

KE = ½ x m x v²

New cards
4

What is the formula to calculate efficiency?

efficiency = useful energy output/total energy input x 100

New cards
5

What is the relationship between power, work done (energy transferred) and time taken?

power = work done/time taken

p = f x d /t

New cards
6

What is the relationship between energy transferred and work done?

Energy transferred = work done

New cards
7

Energy

Energy allows work, radiation and heating to be done.

New cards
8

Kinetic energy

Possessed by an object which is moving.

New cards
9

Thermal energy

Contained within an object that is above absolute zero (the energy makes the particles inside the object vibrate).

New cards
10

Chemical energy

Stored in food, fuel or other chemical forms (e.g. battery or cell).

New cards
11

Elastic/strain energy

Stored in an object which is stretched, squashed or bent.

New cards
12

Nuclear energy

Stored within the nucleus of each atom. Only released during the processes of nuclear fission (in nuclear power stations), nuclear fusion (stars), and radioactivity (in unstable elements).

New cards
13

Magnetic energy

Stored by virtue of work has been done against a magnetic field and the potential of the objects within the magnetic field.

New cards
14

Electrostatic energy

Stored by a virtue of work has been done against an electric field and of the potential of the objects within the electric field.

New cards
15

Mechanical energy transfer

When a force moves something through a distance.

New cards
16

Heat energy transfer

When a temperature difference causes a transfer of energy from one place to another by conduction or convection.

New cards
17

Electrical energy transfer

When an electric charge moves through a potential difference: this is the main method of energy transfer in electric circuits.

New cards
18

Radiation energy transfer

Carried by waves in the electromagnetic spectrum (this includes Radio, microwaves, infra-red, visible light, ultra-violet, x-rays and gamma), or by mechanical waves such as sound.

New cards
19

Renewable sources of energy

Can be replensished quickly. They will last for the lifetime of Earth.

New cards
20

Non-renewable sources of energy

Takes millions of years to be replenished (if at all). We say they are finite because they will run out some point in the future.

New cards

Explore top notes

note Note
studied byStudied by 20 people
... ago
4.0(1)
note Note
studied byStudied by 92 people
... ago
5.0(1)
note Note
studied byStudied by 34 people
... ago
5.0(1)
note Note
studied byStudied by 197 people
... ago
5.0(2)
note Note
studied byStudied by 20 people
... ago
5.0(1)
note Note
studied byStudied by 76 people
... ago
5.0(2)
note Note
studied byStudied by 12 people
... ago
5.0(1)
note Note
studied byStudied by 62 people
... ago
5.0(1)

Explore top flashcards

flashcards Flashcard (66)
studied byStudied by 6 people
... ago
5.0(1)
flashcards Flashcard (48)
studied byStudied by 31 people
... ago
5.0(1)
flashcards Flashcard (83)
studied byStudied by 57 people
... ago
5.0(2)
flashcards Flashcard (35)
studied byStudied by 46 people
... ago
5.0(2)
flashcards Flashcard (254)
studied byStudied by 13 people
... ago
5.0(1)
flashcards Flashcard (27)
studied byStudied by 10 people
... ago
5.0(1)
flashcards Flashcard (66)
studied byStudied by 3 people
... ago
5.0(1)
flashcards Flashcard (89)
studied byStudied by 2 people
... ago
5.0(2)
robot