Brainscape's Knowledge GenomeTM

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


See full index

Physics > Equations to know > Flashcards

Equations to know Flashcards

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

How do you work out:
Weight
(W=mg)

A

Weight= mass x gravitational field strength

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

How do you work out:
Force applied to a spring
(K=ke)

A

Force applied to a string= spring constant x extention

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

How do you work out: Acceleration

a=▪️v/t

A

Acceleration= change in velocity / time taken

Divide

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

How do you work out:
Momentum
(p=mv)

A

Momentum= mass x velocity

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

How do you work out:
Gravitational potential energy (GPE)
(Ep=mgh)

A

GPE= mass x gravitational field strength x height

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

How do you work out:
Power
(P=W/h)

A

Power= work done / time

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

How do you work out:
Efficiency
(Hint: Power)

A

Efficiency= useful out / total out (power)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q 
How do you work out:
Charge flow
(Q=I t)
A

Charge flow= current x time

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

How do you work out:
Power
(P=VI)

A

Power= potential difference x current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q 
How do you work out:
Energy transfer
(E=Pt)
A

Energy transfer= power x time

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

How do you work out:
Density
(p=m/V)

A

Density= mass/volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q 
How do you work out:
Work done
(W=Fs)
A

Work done= force x distance(along line of action of the force)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q 
How do you work out:
Distance travelled 
(s=vt)
A

Distance traveled= speed x time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q 
How do you work out:
Resultant force
(F=ma)
A

Resultant force= mass x acceleration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q 
How do you work out:
Kinetic energy
(Ek= 0.5mv(squared))
A

Kinetic energy= 0.5 x mass x (speed(squared))

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

How do you work out: Power

P=E/t

A

Power= energy transferred / time

17
Q 
How do you work out:
Wave speed
(v=f(upside down y))
A

Wave speed= frequency x wavelength

18
Q 
How do you work out:
Potential difference 
(V=IR)
A

Potential difference= current x resistance

19
Q

How do you work out:
Efficiency
(Energy transfer)

A

Efficiency= useful output energy transfer/useful input energy transfer

20
Q

How do you work out:
Power
(P=I(squared) R)

A

Power= current(squared) x resistance

21
Q 
How do you work out:
Energy transferred
(E= QV)
A

Energy transferred= charge flow x potential difference

22
Q

How do you work out:
Pressure
(p= F/A)

A

Pressure= force to normal surface/area of surface

23
Q

How do you work out:
Momentum of force
(M=Fd)

A

Momentum of force= force x distance(normal to direction of force)

Physics (3 decks)

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