Physics Exam Preparation

1. The diagrams show water waves that move more slowly after passing into shallow water. Which diagram shows what happens to the waves?

• A

• B

• C

• D

The diagram shows a wave before it reflects from a barrier. Which labelled section of the diagram represents a wavefront?

• A

• B

• C

• D

A vibrating object produces ripples on the surface of a liquid. The object completes 20 vibrations every second. The spacing of the ripples, from one crest to the next, is 3.0 cm. What is the speed of the ripples?

• A 0.15 cm/s

• B 6.7 cm/s

• C 60 cm/s

• D 120 cm/s

In which circuit does the lamp light?

• A

• B

• C

• D

In which circuit is there just a single lamp lit?

• A

• B

• C

• D

2. The diagram shows a wave.

• A
• B
• C
• D

3. Which statement describes monochromatic light?

• A light that never diffracts
• B light that has a single frequency
• C light that spreads out when shone through a glass prism
• D light that travels at the same speed in all materials

The diagrams each show a ray of light from an object O passing through a thin converging lens. The principal focuses in each diagram are labelled F.

Which diagrams are correct?

• A 1 and 2

• B 2 only

• C 1 and 3

• D 3 only

A student uses four ammeters P, Q, R and S to measure the current in different parts of the circuit shown.

Which two ammeters read the largest current?

• P and Q

• P and R

• R and Q

• R and S

The diagram shows a wire carrying a current in the direction shown. There is a magnetic field acting from left to right. The wire experiences a force acting out of the page.

The current is now reversed. In which direction does the force on the wire now act?

• into the page

• out of the page

• to the left

• to the right