Kinetic energy doesn't affect by the ..........
color
Mass
When a piece of coal is burnt, .......... Energy is produced.
thermal
Potential
The car needs ........... to move.
fuel
water
Hydroelectric energy is generated from .........
biofuel and fossil fuel
waterfalls and dams
When the car fuel completely runs out, then the car's ...... becomes zero.
speed
Both hair dryer and electric water kettle produce ...........energy.
light
.......... is considered as the main resource of energy on Earth's surface.
The sun
Natural gas
To keep playing with the toy car, we have to .............. the batteries.
replace
heat
In a battery of a toy car ........... energy changes into electrical energy.
chemical
sound
Coal is a type of fuel, which is used in all the following purposes except ...........
warming houses
operating TV
Electric wires are made of .............
copper
wood
When you use the hand ball, the ....energy changed into sound energy.
kinetic
electrical
The big truck needs .... Engine.
Big
small
When the car stops suddenly, the passengers move .........
backward
Forward
The produced ...... energy doesn't help the blender do its job.
All the following are found deeply under earth's surface except ......
coal
green plant
When you turn on a light bulb, the electrical energy travels through .......... until reaching the bulb.
plastic
wires
Curiosity rover is designed to explore .........
The Moon
Mars planet
When objects crash with each other, then .......transfers between them.
energy
Distance