A force arrow shows:

Calculate the resultant force for the hot air balloon:

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

A runner runs 100 metres in 12.5 seconds. Calculate her average speed.

Which statement is incorrect?

Which piece of equipment could you use to find the density of an irregular shaped object?

You can make a hole in a piece of wood if you bang in a nail with a hammer. If you hit the wood with the hammer it does not make a hole. Choose the best explanation for this from the statements below:

If the see-saw balances, the anticlockwise moment must equal the clockwise moment. Calculate the missing value for the right hand side.

In an investigation, the variable that you measure is called:

Choose the correct spelling for the definition and write on the line.

When repeat tests of an investigation made by the same experimenter give similar results.

Choose the correct spelling for the definition.

The rate at which speed increases or decreases.

Match the key word to the definition

Volume

Match the key word to the definition

Accuracy

Match the key word to the definition.

Moment

Match the key word to the definition.

Speed

Five people take it in turns to sit on a see-saw.

Andy sits at one end of the see saw, but there is nobody on the other end. In which direction does his end of the see-saw move?

The table gives the weight of each person.

Which two people in the table above could make the see-saw balance when sat at the end of the see-saw?

Rosie sits on end A, and Jack sits on end B.

They lift their feet. What happens to each end of the see-saw?

Ellie sits on end A, and another of the group sits on end B. Ellie's end stays down.

The diagram shows four forces acting on a plane in flight.

Which arrow represents air resistance?

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

When the plane is flying at a constant speed in the direction shown, which two forces must be balanced?

Just before take-off, the plane is speeding up along the ground. Which statement is true?

Which statement is true about the plane just as it leaves the ground?

Russell investigated the relationship between mass and weight.

He weighed five different masses using a force meter.

His results are shown below

Mass (g)___________ Weight (N)

150_________________ 1.5

250_________________ 2.5

300_________________ 3.8

400_________________ 4.0

580_________________ 5.8

He plotted four of his results on a grid as shown. Which point is correctly plotted for 150g

Russell plots a line of best fit on the graph. Which one is correctly drawn?

One of the points Russell plotted does not fit the pattern.