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