The energy can be .......... from one form to another.
converted
increases
decreases
The mobile phone converts chemical energy stored in its batteries into .......energy and ............. energy.
light , sound
heat, light
sound, light
The big truck needs .... engine.
big
small
When objects crash with each other, then .......transfers between them.
energy
distance
During a car crash, the ......... is inflated with a gas
airbag
seatbuilt
wrecking ball
The electric lamp converts ........ energy into light and heat energy.
solar
electrical
thermal
We can use some forms of fuel such as ..........and ...........in warming houses.
oil , wood
charcoal , oil
charcoal , wood
Coal and ............can be used in electric power stations to generate electricity.
water
oil
wood
When the mass of a moving object decreases, its kinetic energy............at the same speed.
decrease
increase
As a result of hitting the ball with the bat, the direction of the ball will ...............
change to opposite direction
be stop
change to same direction
To operate an electric mixer we use ............. energy.
kinetic
............ is example of biofuel, while ...............is example of fossil fuel.
wood, coal
coal , wood
The energies that are produced from the washing machine are .....energy and .............energy.
kinetick , sound
kinetick , chemical
chemical, sound
In any energy chain, some of the energy is lost in the form of ...........
sound
heat
The speed of .......... vehicles is slower than that of normal vehicles.
sun
Engineers try to reduce the weight of the solar vehicles to increase its ........
speed
direction
mass
The energy that is produced from the battery and used to operate a toy car is ........... energy.
When the car stops suddenly, the passengers move .........
forward
backward
In electric heater, .......... Energy is considered as an input energy , while thermal energy is considered as .......... energy.
electrical , input
thermal , output
electrical , output
When you ride a bicycle, the ........energy stored in your body is converted into .......... energy which causes the bicycle to move.
chemical , kinetic
thermal , kinetic
chemical , thermal