Kinetic energy is not affected by the ..........
mass
color
To keep playing with the toy car we have to ..............the batteries.
replacing
heat
When you use the hand ball, the ....energy changed into sound energy
electrical
kinetic
In a battery of a toy car ........... energy changes into electrical energy.
chemical
sound
Both hair dryer and electric water kettle produce ...........energy.
thermal
light
The produced ...... energy doesn't help the blender do its job
The airbag helps to ..........
Reduce the speed of a person’s movement forward.
Increase the speed of the person's movement backwards.
Increase the speed of a person’s movement forward.
Coal is a type of fuel, which is used in all the following purposes except ...........
operating T.V
warming houses
..............is considered as the main resource of energy on the Erath ́s surface.
The Sun
Natural gas
Gasoline
When the car fuel completely runs out, then the car's ...... becomes zero.
speed
All the following are found deeply under earth's surface except ......
green plant
coal
Ancient people use ......... as a form of fuel before discovering gasoline.
wood
wind
All the following are found deeply under the Earth ́s surface, except...........
green plants
natural gas
The airbag is made of ........................
carton
rubber
nylon
As energy transforms from one form to another, some of it is often lost as:
Curiosity rover is designed to explore .........
Mars planet
The moon
When you turn on a light bulb, the electrical energy travels through .......... until reaching the bulb.
wires
plastic
The car needs ..........to move.
fuel
water
When a piece of coal is burnt .......... energy is produced.
potential
Electric wires are made of .............
copper