concept 2.3 grade 4

Airbags absorb the ....................... of the passengers during collision

(write the scientific term) The distance that an object travels in a certain amount of time

(what happens if) the speed of a car increases (according to its kinetic energy)

The measuring units of the speed are ....................... and ...........................

A car covers 80 meters in 4 seconds, so it moves at speed equals .............. m/sec

The speed of an object = .................................

If the angle of inclination of a hill increases, the kinetic energy of an object moving down it will ...................