# Unit 1 Physics June 2009

## 1. Which set of quantities is all scalar?

## 2. A material is described as ‘not easy to scratch or indent’. The material is best described as

## 3. A force of 24 N and a force of 15 N act at right angles to each other. The size of their resultant force is

Use the following graph for Questions 4 and 5:

## 4. The stiffness of the spring in Nm^{-1} is

## 5. The energy stored in the spring when it is extended by 6.0 cm is

Use the following graph to answer Question 6:

## 6. The quantity represented by the gradient of the graph is

## 7. A car of known mass has a constant acceleration. The resultant force acting on the car can be found by applying

Use the following graph to answer Questions 8 and 9: