Physics

Question 1

What does the gradient of a Distance-time graph give you?

Answer 1

The speed of an object

Question 2

What does the gradient of a Velocity-time graph give you?

Answer 2

The acceleration of a particle

Question 3

What does the area under a Velocity-time graph give you?

Answer 3

The displacement of an object

Question 4

What is the difference between a Scalar and a Vector?

Answer 4

Vectors have magnitude and direction, scalars only have magnitude.

Question 5

What is thinking distance? Give 3 factors that affect this?

Answer 5

distance a vehicle travels during the time it takes for the driver to perceive a hazard, recognise that action before applying pressure to the brakes. (drugs, alcohol, distractions and tiredness)

Question 6

What is braking distance? Give 3 factors that affect this?

Answer 6

The time taken from when the brakes are pressed to when the car comes to a stop, (the speed of the car, the mass of the car, how worn the brakes and tyres are, and the road surface)

Question 7

What is the definition of the stopping distance?

Answer 7

the distance that a driver needs in order to safely bring a vehicle to a complete stop

Question 8

What is the difference between renewable and non-renewable energy?

Answer 8

renewable resources can naturally replenish themselves while nonrenewable resources cannot.