GCSE EdExcel Physics - Paper 1 (copy)

What is mass measured in?

Kilograms

What is length measured in?

Metres

What is time measured in?

Seconds

What is temperature measured in?

Kelvins

What are the three possible reasons for a correlation?

Chance, linked by a third variable or cause

What is the equation for uncertainty?

Uncertainty = range in results ÷ 2

What is the difference between vector and scalar?

Vectors have magnitude and direction, scalars just have magnitude

Name six vector quantities

Force, velocity, displacement, weight, acceleration, momentum

Name six scalar quantities

Speed, distance, mass, energy, temperature, time

What is distance?

How far an object has moved

What is displacement?

Measurement of distance and direction in a straight line, from an object’s starting point to its finishing point

If I walk 5m north, then 5m south, what is my displacement?

0m

If i walk 5m north then 5m south, what is my distance travelled?

10m

What is speed

How fast something is going

What is velocity

Speed in any given direction

What is the typical walking speed?

1.4m/s

What is the typical running speed?

3m/s

What is the typical cycling speed

5.5m/s

What is the typical speed of a car in a built-up area?

13m/s