EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which force is most responsible for slowing a bicycle down when brakes are applied?
A
friction
B
gravity
C
inertia
D
magnetism
Explanation: 

Detailed explanation-1: -When brakes are applied, there is a force applied which acts in the opposite direction of motion of vehicles. Thus, the force of friction comes into play on applying the brakes. This force is responsible for slowing down of vehicles.

Detailed explanation-2: -Brakes on a bike work because of friction. Many bikes have brakes that are activated by squeezing a rubber shoe against the rim of the wheel causing the wheel rotation to slow. As the brake shoe is rubbing against the wheel rim, your kinetic energy is converted into heat, which has the effect of slowing you down.

Detailed explanation-3: -As the rubbers rub against the wheels, the friction between the rubber and the wheels comes into action and stops the wheel.

Detailed explanation-4: -A mechanical brake applies a friction force to convert the kinetic energy of the vehicle into thermal energy which then dissipates into the atmosphere.

Detailed explanation-5: -Friction is a force that’s created when bumps on the surfaces of two objects push against one another. Friction is what causes moving objects to slow down and eventually stop.

There is 1 question to complete.