WorksheetsLAW OF CONSERVATION OF ENERGY
Total questions: 20
Worksheet time: 11mins
The Law of Conservation of Energy states:
Energy can created or destroyed but not transformed
Energy cannot be created or destroyed, it can only transformed from one form to another form
Energy can't be created, destroyed or transformed
All the above
Running
Potential or kinetic?
Potential
Kinetic
Stretched bow and arrow is
Potential or kinetic?
Kinetic
Potential
What kind of energy does this device use?
Chemical
Electrical
Thermal
Mechanical
What kind of energy is represented in this picture?
Thermal
Potential
Nuclear
Mechanical
When the cart started rolling the energy transformation was ______.
Potential to kinetic
Kinetic to potential
No energy was transformed
Not defined
The unit of work is joule. The other physical quantity that has same unit is
Power
Velocity
Energy
Force
SI unit of power is _______
Newton(N)
Pascal(P)
Joule
Watt,W
SI unit of work_____
Watt
Joule
Newton
Newton meter
Kinetic energy formula (a)
Potential energy formula (a)
What does the law of conservation of momentum mean?
it is what happens when a collision happens.
it tells what momentum is.
it is what gravity does.
it is speed.
What is mometum?
Science
memes
the quantity of motion of a moving body
Weight
What happens when a ball collides with a human?
The human will not move.
The human will fall down.
Both will move in opposite directions.
nothing
Practical unit of power is_____
Watt
horse power(hp)
Newton
Watt meter
1HP is equal how much watt?
746 watt
789 watt
769 watt
709 watt
1 Joule _____dyne
105 dyne
107 dyne
106dyne
108 dyne
CGS unit of force is _____
Erg
Nano
Dyne
meter
CGS unit of work___
Erg
Dyne
momentum
pascal
Momentum p = _____
m x v
m x a
m x n
f x d
