A student is riding the school bus. The bus stops as the driver applies the brakes. Which of these statements best describes this situation?(1 point)
Responses
There is no force acting on the bus so it stops moving.
There is no force acting on the bus so it stops moving.
The bus is gaining energy because of friction.
The bus is gaining energy because of friction.
The school bus does not lose or gain kinetic energy.
The school bus does not lose or gain kinetic energy.
A force is changing the motion of the bus.
A force is changing the motion of the bus.
A force is changing the motion of the bus.
The correct answer is: "A force is changing the motion of the bus."
When the driver applies the brakes on the school bus, a force is being exerted on the bus. This force opposes the forward motion of the bus and slows it down, eventually bringing it to a stop. The force of friction between the brake pads and the bus wheels is responsible for this deceleration. Thus, the statement "A force is changing the motion of the bus" best describes the situation.