Forces

Calculate the resultant force in the diagram. (Remember to give a direction too)

Calculate the resultant force in the diagram. (Remember to give a direction too)

Calculate the resultant force in the diagram.

To calculate the speed of an object what two factors must you know:

• Shape and size of the object

• Distance travelled and mass of the object

• Distance travelled by the object and time taken

• Time taken and mass of the object

Choose the correct spelling for the definition.

The rate at which speed increases or decreases.

• Accelertation

• Acceleration

• Aceleration

• Accalaration

The arrow in diagram A shows the thrust of the car.

How would you show that the car in diagram B has a smaller force of thrust?

• Draw a wider arrow.

• Draw a shorter arrow.

• Draw a longer arrow.

Match the key word to the definition.

Speed

• How fast something travels.

• How close data is to true values.

• Measurement of amount of space a material takes up. Also a measurement of how loud a sound is.

• Turning effect of a force.

Boedy swims 100m in 5 minutes. What is his speed?

• 15 m/minute

• 20 m/minute

• 25 m/minute

• 30 m/minute

If two forces of 30 N towards the north and 15 N towards the south are acting on an object. The resultant force will be

• 45 N Towards South

• 45N towards North

• 15 N towards South

• 15 N towards North

When the plane is flying at a constant height, which two forces must be balanced?

• A and B

• A and C

• B and C

• C and D