How do brakes work?

The video explains the importance of brakes in ensuring safety by slowing down vehicles. It describes the mechanism of brakes, where pulling the brake handle causes rubbery pads to squeeze against the wheel, creating friction that slows the bike. This principle is applicable to various vehicles like bikes, trains, and cars, using friction to decelerate and stop.

Why are brakes essential for safety?

• They increase the speed of vehicles.

• They help in slowing down or stopping vehicles.

• They enhance the comfort of the ride.

• They make vehicles more fuel-efficient.

What happens when you pull the brake handle?

• The brake pads move away from the wheel.

• The brake pads squeeze against the wheel.

• The vehicle accelerates.

• The wheels start spinning faster.

What is the force called that is created by the rubbing of brake pads against the wheel?

• Gravity

• Tension

• Magnetism

• Friction

How does friction help in the functioning of brakes?

• It increases the speed of the vehicle.

• It reduces the wear and tear of the brake pads.

• It slows down and eventually stops the vehicle.

• It makes the vehicle more aerodynamic.

Which vehicles rely on brakes to control speed?

• Bikes, trains, and cars

• Airplanes, boats, and helicopters

• Trains, buses, and airplanes

• Bicycles, skateboards, and roller skates