Definitions,Symbols Flashcards
1
Q
Speed
A
The rate of change of distance with time
v or u
ms^-1
2
Q
Velocity
A
Speed in a given direction
v or u
ms^-1
3
Q
Acceleration
A
The rate of change or speed or velocity with time
a
ms^-2
4
Q
Force
A
That which gives acceleration to mass
F
N
5
Q
Torque
A
The turning effect of a Force
T
Nm
6
Q
Work
A
Work is the transfer or transformation of energy, brought about by a Force
W
J
7
Q
Energy
A
The capacity to do Work
E
J
8
Q
Power
A
The rate of doing Work, or supplying Energy
P
W
9
Q
Efficiency
A
The ratio of Energy output to Energy input
long n
10
Q
Pressure
A
A measure of the force per unit area
P
Pa
11
Q
Volume
A
A measure of the space occupied by an object
V
m^3
12
Q
Mass
A
Mass is the amount of matter or substance in a body, and is measured in kilogram.
13
Q
Weight
A
Weight is a Force felt due to gravity ,and is measered in newtons
