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WorksheetsPhysics Fun Energy Dhamaal
Total questions: 10
Worksheet time: 6mins
What is electrical energy converted into when a drill is used? (There can be more than one answers)
Mechanical Energy
Magnetic Energy
Heat energy
Light Energy
Complete the statement about the principal of Conservation of Energy.
Energy can be changed for one form to another but the total amount of energy
always increases
always decreases
does not change
varies according to the reaction
Which of the following is defined as an energy transfer?
kinetic energy
work
potential energy
chemical energy
What are the other names of Potential energy?
(a)
Calculate the work needed to raise a 3 kg cat up to a height of
4 m.
12 J
0 J
120 J
1.22 J
Write about the conversion of energy in a mobile phone:
(Including while wired charging)
Electric > Chemical > Electrical > Light / Sound / Heat
Light > Chemical > Magnetic > Mechanical / Light / Sound
Mechanical > Light > Sound > Mechanical / Sound / Atomic
Sound > Atomic > Light > Heat / Sound / Mechanical
Write about the conversion of energy in a table fan:
Electrical > Mechanical > Light and Sound
Mechanical > sound > Electrical and Light
Electrical > Mechanical > Wind and Sound
Sound > Light > Mechanical and Wind
Forces can be added together only if they are
acting on the same object
unaffected by gravity
balanced forces
substantial
According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail
creates a friction with the hammer.
disappears into the wood.
exerts an equal and opposite force on the hammer.
moves at a constant speed.
What Energy does a swinging Pendulum has?
Kinetic Energy
Potential Energy
