Physics Worksheet - Maria Regina Boy'S Secondary College (Page 2 of 9) in pdf

Physics Worksheet - Maria Regina Boy'S Secondary College Page 2

ECTION

This section carries 40 marks.

1. This question is about units and measurement.

a) The mass of an iron block is 680 g. Its mass in kilograms = ____________ kg. [1]

b) A metal wire is 80 cm long. Its length in metres = ___________ m.

[1]

c) Carl takes 15 minutes to arrive at school. The time in seconds = _________ s. [1]

d) On Earth a mass of 1 kg has a weight of ________ N.

[1]

e) Andrew needs to find the volume of a metal key. Apart from the key, he is given

a measuring cylinder, a string and some water. Write down the steps (e.g.

1, 2, 3, 4, 5) he needs to take to find the volume of the key. The first one is

done for you.

He notes that the water rises and the new volume is noted.

He works out the difference in volume.

He lowers the key until it is fully immersed in water.

He ties the end of the string to the key.

He pours some water into the measuring cylinder and notes its volume.

[4]

candle wax

2. This question is about the density of a solid.

10 cm

Jeffrey is given a rectangular block of candle wax as shown in

20cm

15 cm

Figure 1.

Figure 1

a) He measures the length, breadth and height of the block by

using a ______________________.

[1]

b) Using the values in Figure 1, calculate the volume of the block in cm

_______________________________________________________________ [1]

c) He measures the mass of the block by using a _________________________ [1]

d) Given that the mass of the block is 2760 g, calculate the density of candle wax.

_______________________________________________________________

_______________________________________________________________ [2]

Page 2 of 9

Physics Half yearly exam 2014 – Track 2 - Form 3

Physics Worksheet - Maria Regina Boy'S Secondary College Page 2