Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physics > P1 > Flashcards

P1 Flashcards

You may prefer our related Brainscape-certified flashcards:
Physics 101 flashcards AP® Physics flashcards
1
Q

The different energy stores

A 
Chemical 
Kinetic 
Gravitational potential 
Elastic potential 
Thermal 
Nuclear
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the conservation of energy?

A

Energy cannot be created or destroyed, it can only be transferred from one state to another.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a system?

A

A system is a chosen object or a group of objects.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is a closed-system?

A

A closed system is an isolated system in which no energy transfers takes place into or out of the system.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is work?

A

To move an object with an application.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Work

A

Work = force x distance

W = F x s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is friction?

A

Friction is the resistance to motion of one object moving relative to another.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Gravitational potential energy

A

Change in gravitational potential energy stores = Weight x Change in height

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Kennetic energy

A

Kennetic energy = 0.5 x mass x speed 2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Elastic energy

A

Elastic energy = 0.5 x Spring constant x Extention

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is useful energy?

A

Useful energy is energy transferred to where it is wanted in the way it is wanted.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is wasted energy?

A

Wasted energy is the energy that is not usefully transferred.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is dissipated energy?

A

Dissipated energy is the energy that is not usefully transferred and stored in less useful ways.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is efficiency?

A

Efficiency is the ratio of useful work performed by a machine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Efficiency

A

Efficiency = useful output energy transferred by the device ÷ total input energy supplied to the device

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is power?

A

Power is the rate at which energy is transferred

17
Q

Power

A

Power = Energy transferred to appliance ÷ time taken

18
Q

Wasted power

A

Wasted power = total - usefull

Physics (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions