Multiple choice 2016.s

A motorist travels 200km. After travelling along a fast road for 2 hours, the motorist uses a slow road for the remaining 1/2 hour of the journey. What is the average speed of the car for the whole journey?

• A 80km/ h

• B 100km/ h

• C 400km/ h

• D 500km/ h

Diagram 1 shows a spring with its length indicated. Diagram 2 shows the same spring with a 20N load hung from it, and the new length of the spring. The extension of the spring is directly proportional to the load hung on it. Which graph is the extension/ load graph for the spring?

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Two men each lift identical boxes vertically upwards onto the same table. Man X takes 1.5s to lift his box, and man Y takes 2.0s to lift his box. Which man produces the greatest power in lifting the box and what is the unit of power?

• A

• B

• C

• D

Which statement describes the properties of a liquid?

• A It has a definite shape and has a definite volume.

• B It has a definite shape but no definite volume.

• C It has no definite shape and no definite volume.

• D It has no definite shape but has a definite volume.

A substance is a gas when its temperature is 65°C. How do the boiling point and the melting point of this substance compare with 65°C?

• A

• B

• C

• D

Which method of thermal energy transfer can occur in a vacuum and which region of the electromagnetic spectrum is often involved in this type of thermal energy transfer?

• A

• B

• C

• D

Which diagram below represents a wave with double the frequency and half the amplitude of the wave in diagram 1? The scales are the same in all the diagrams.

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The diagram shows a ray of light striking a plane mirror. What is the angle of reflection?

• A 20°

• B 40°

• C 70°

• D 140°

The diagrams represent two different sound waves, P and Q, drawn to the same scale. How do the loudness and the pitch of the sounds compare with each other?

• A

• B

• C

• D

A 10V battery is connected in series with an ammeter and a 5.0Ω resistor. What is the reading on the ammeter?

• A 0.20A

• B 0.50A

• C 2.0A

• D 5.0A