Practice Quiz PHYSICS Yr 9

Which of the following is the correct equation to calculate average speed?

• speed = time ÷ distance

• speed = distance + time

• speed = time - distance

• speed = distance ÷ time

Which of the following is not a unit used to measure speed?

• miles per hour

• metres per second

• kilograms per hour

• kilometres per hour

A car drives 200km in 3 hours.

 

What is the speed of the car in metres per second?

Give your answer to the nearest whole number.

• 0.015

• 19

• 67

• 600

What is the name of the Earth's natural satellite?

• Meteor

• The moon

• Haley's Comet

• The sun

What is responsible for holding our artificial satellites in orbit?

• Wind

• Gravity

• Solar power

• Rockets

What are the two factors that affect the force of gravity between two objects?

• Distance between the objects

• Size of the objects

• Colour of the objects

• Mass of the objects

Assuming the objects are all the same distance apart, which TWO objects would have the greatest force of gravity between them?

 

Tick the TWO you agree with.

• 1 kg weight

• 100 kg weight

• 1000 kg weight

• 10 kg weight

Complete the following sentence by selecting one of the options below:

 

If a ball falls a short distance, the downwards force is.......

• Smaller than the air resistance

• Greater than the air resistance

• Equal to the air resistance

Complete the following sentence by selecting one of the options below:

 

At terminal velocity the downwards force is.....

• Smaller than the air resistance

• Greater than the air resistance

• Equal to the air resistance

Which famous scientist developed the Laws of Motion?

• Isaac Newton

• Albert Einstein

• Brian Cox

• Charles Darwin