on collision energy is ..............................
transferred and changed
The distance that an object traveled in a certain amount of time.
Speed
When the inclination of a ramp decreases, the kinetic energy of a ball rolling down ..........................
decreases
GR. The speed of a truck is more than that of a car when both of them move down a ramp.
because the truck has more mass as the speed of the moving object on a ramp increases by increasing its mass.
GR. A truck needs a bigger engine than that of a small car to move with the same speed.
as the truck has more mass and kinetic energy than the car, so the truck needs a bigger engine than the car.
The smaller the mass of the vehicle, the less fuel it consumes. ( true/false)
True
GR. Driving fast is very dangerous.
because if a car increases its speed, its kinetic energy increases which result in exerting a large force during an accident.
