The energy source in toy car is the ....
battery
fuel
tires
Damage will be less severe when two cars collide in the ...... direction
parallel
same
opposite
....... is used to knock down parts of a building .
wrecking ball
crane
winch
....collisions the airbag deflates automatically.
During
After
Before
From safety equipement of cars during collisions is (are) .....
airbag and seatbelts
airbag
Airbags are made up of ....
plastic
thin nylon
thin
....collisions the airbag inflates automatically.
Electric cars .....
cause pollution
need charging
need fuel
Fast object cause ....
small damage that can be repaired
great damage that can be repaired
great damage that can't be repaired
solar cars .....
cause climate change
light in weight