Y9/10 Flashcards
1
Q
Acceleration?
A
Final velocity-initial velocity/ time
2
Q
Weight?
A
Mass*gravity
3
Q
Electrical power?
A
Current*voltage
4
Q
Charge?
A
Current*time
5
Q
Wave speed?
A
Frequency*wavelength
6
Q
Wave frequency?
A
1/time period
7
Q
Angle of incident?
A
Angle of incidence=angle of reflection
8
Q
Refractive index?
A
Speed of light in a vacuum/ speed of light in that material
9
Q
Sin C? (Sine critical angle)
A
1/refractive index
10
Q
Efficiency?
A
Useful energy output/total energy input
11
Q
Work done?
A
Force* distance moved
12
Q
Power?
A
Work done/ time taken
13
Q
KE?
A
0.5mv^2
14
Q
GPE?
A
Mgh
15
Q
KE gained?
A
GPE lost
