GCSE Physics - Stopping Distances #58

The video explains the concept of stopping distance, which is the sum of thinking distance and braking distance. Thinking distance is influenced by the driver's reaction time and vehicle speed, while braking distance is affected by the vehicle's speed, mass, brake condition, and road traction. The video highlights that braking distance increases exponentially with speed, emphasizing the importance of understanding these factors for vehicle safety.

What two main factors influence the thinking distance of a vehicle?

• Mass of the vehicle and road conditions

• Driver's reaction time and speed of the vehicle

• Speed of the vehicle and road conditions

• Condition of the brakes and driver's alertness

Which of the following is NOT a factor affecting braking distance?

• Driver's reaction time

• Condition of the brakes

• Road conditions

• Speed of the vehicle

How does the condition of the road affect the braking distance?

• Dry roads increase braking distance

• It has no effect on braking distance

• Road conditions only affect thinking distance

• Wet or icy roads increase braking distance

If a car's speed is doubled, how does the braking distance change?

• It remains the same

• It increases fourfold

• It triples

• It doubles

What happens to the total stopping distance as the speed of a vehicle increases?

• It decreases

• It increases linearly

• It becomes steeper and steeper

• It remains constant