An introduction to…Measurements and calculations

You are provided with the following apparatus:

Cake cup

Cardboard triangle

Cell, nominal 1.5V

Connecting leads (×5)

Digital ammeter

Digital voltmeter

Helical spring

Mass 300g (100g holder + 2×100g)

Metre rule (×2)

Old 2p piece (non-magnetic)

Protractor

Resistors A and B

Ruler (30cm)

Stand, boss and clamp

Stopwatch

Thermometer

Vernier calliper

You will be able to share: Micrometers

Electronic balance

Use the apparatus provided to answer the following questions. In each case show your measurements and calculations clearly. You must use an appropriate number of significant figures in your final answer. Where appropriate, draw a diagram to show how the measurements were carried out.

1. What will be the length of the coiled section of the spring if it is stretched by a force of 5N?

2. What is the resistance of each of the resistors A and B?

3. What is the terminal velocity of the cake case in air?

4. What is the period of oscillation (the time for one cycle of the up-down-up bounce) of the spring when holding 300g?

5. What is the room temperature?

6. What are the three angles and the area of the cardboard triangle?

7. What is the density of the copper alloy used to make an old 2p piece?

8. What is the thickness of the paper used to print “Physics for You”?