1) Seatbelts in cars are very important  a) To keep the diver's body and also the passengers from Moving forward when the car stop suddenly  b) To keep the diver's body and also the passengers from Moving backward when the car stop suddenly 2) Airbags in cars are very important  a) Because the airbags slow the speed of the driver Moving forward and they absorb the energy During collion   b) Because the airbags slow the mass of the driver Moving forward and they absorb the energy During collion 3) The speed of the ball increases when the bat hits it hard a) Because the light energy of the bat transfers to the ball  b) Because the kinetic energy of the bat transfers to the ball 4) When two object collide with each other, you Can hear a sound  a) Because a part of kinetic energy changes into sound energy  b) Because a part of kinetic energy changes into light energy 5) A truck need a Bigger engines than that of a small car to move with Same speed a) Because the truck has less mass than the car.  b) Because the truck has more mass than the car. 6) .A car consumes less fuel than consumed in the bus  a) Because the car has smaller engine than the bus  b) Because the car has bigger engine than the bus 7) You can hear a sound During collision between marbels a) Because some of kinetic energy changes into heat energy During collision  b) Because some of kinetic energy changes into sound energy During collision 8) The amount of energy before collision is equal the amount of energy after collision  a) Because energy is conserved during collision, so it cannot destroyed b) Because work is conserved during collision, so it cannot destroyed 9) The speed of the truck is more than that of a small car when both of them roll down on the Same ramp  a) Because the truck has mass more than of a small car so the truck has speed and kinetic energy less than that of a small car  b) Because the truck has mass more than of a small car so the truck has speed and kinetic energy more than that of a small car

Give reason G 4 u2 con 3

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