Form 1 ScienceChapter 1

FORM 1 CHAPTER 1 INTRODUCTION TO SCIENCE

1. Diagram 1 shows some measuring tools.

P Q R

………………………………. ………………………………. ……………………………….

Diagram 1

(a) On Diagram 1, label P, Q and R with the following words.

External calipers Triple Beam balance Thermometer

[3 marks]

(b) Draw lines to show the correct match between the measuring tools and their uses. Draw the lines as shown below. Measuring tools Uses

[2 marks]

P

Q

R Measure the external diameter of an object

Measure the temperature of an object

Measure the weight of an object

Measure the mass of an object

Form 1 ScienceChapter 1

2. Diagram 2.1 shows some measuring tools commonly used in the science laboratory.

P Q R

…………………………….. ……………………………… ……………………………..

Diagram 2.1

(a) Label P, Q and R on Diagram 2.1 with the words given below.

Pipette Burette Measuring cylinder

[3 marks]

(b) A student wants to measure a fixed volume of liquid, which measuring tool should he use?

………………………………………………………………………………………………………

[1 mark]

(c) A student carried out an activity to find the volume of a cork as shown in Diagram 2.2.

Form 1 ScienceChapter 1

(i) Name the method that is used to find the volume of the cork.

……………………………………………………………………………………………………

[1 mark]

(ii) What is the volume of the cork?

[2 marks]

mℓ

10

50

60

70

40

30

20

80

90

100

mℓ

50

60

70

40

30

20

80

90

100

10

mℓ

50

60

70

40

30

20

80

90

100

10Stone

Cork

Diagram 2.2

Form 1 ScienceChapter 1

3. A pupil carried out an experiment to determine the time taken for one complete swing of a pendulum as shown in Diagram 3.The time taken for 10 complete swings is recorded and the experiment is repeated using strings of different lengths.

(a) State a hypothesis for this experiment. ………………………………………………………………………………………………………..

……………………………………………………………………………………………………….

1 mark] (b) State the variables involved in this experiment.

Manipulated variable: …………………………………………………………………

Responding variable: ………………………………………………………………..

Fixed variable: ………………………………………………………………..

[3 marks]

Wood pieces

Length of pendulum

Pendulum bob

Diagram 3

One complete swing

string

Form 1 ScienceChapter 1

(c)(i) The time taken for 10 complete swings is shown below. Record the time taken for 10 complete swings in the space provided.

Length of pendulum = 10 cm

Time taken = 10 s

Length of pendulum = 20 cm

Time taken = ………….. s

Length of pendulum = 30 cm

Time taken = ………….. s

Length of pendulum = 40 cm

Time taken = ………….. s

Second

Second

Second

Second

Form 1 ScienceChapter 1

The length of pendulum = 50 cm

Time taken = ………….. s

[2 marks]

(ii) Complete the table below by recording the time taken for the various length of pendulum. Calculate the time taken for one complete swing.

Length of pendulum (cm) 10 20 30 40 50

Time taken for 10 complete swings (s) 10

Time taken for 1 complete swing (s) 1.0

[2 marks]

(d) Using the table, plot a graph of time taken for 1 complete swing against the length of pendulum.

[2 marks]

Second

1.0

2.0

3.05T

ime

take

n fo

r o

ne c

om

ple

te s

win

g (

s)

Length of pendulum (cm)

10 20 30 40 50 60 70

Form 1 ScienceChapter 1

(e) State the relationship between the length of the pendulum and the time taken for one complete swing.

…………………………………………………………………………………………………………..

…………………………………………………………………………………………………………..

[1 mark]

(f) Based on the graph in 8(d), predict the time taken for 1 complete swing when the length of the pendulum is 60 cm.

……………………………………………………………………………………………………………

[1 mark]

Form 1 ScienceChapter 1

4. Diagram 4.1 shows a method of measuring length.

(a) What is the length of the pencil shown in Diagram 4.1?

………………………………………………………………………………………………………

[1 mark]

(b) Mark ‘X’ in the box provided on Diagram 4.1 to show the correct position of the eye in taking the reading.

[1 mark]

(c) Diagram 4.2 shows a curved line.

(i) How would you measure the length of the curved line?

………………………………………………………………………………………………….

[1 mark]

A student carried out an activity to measure the length of the curve shown in Diagram 4.2. The results are shown in Table 4.3.

Reading 1 2 3

Length of curved line (cm) 8.6 8.8 8.7

Table 4.3

Diagram 4.2

Diagram 4.1

cm0 1 2 3 4 5 6

Form 1 ScienceChapter 1

(ii) Why did the student take three readings?

………………………………………………………………………………………………....

[1 mark]

(iii) Based on Table 4.3, what is the length of the curved line?

………………………………………………………………………………………………….

[1 mark]

(d) What is the SI unit for length? ………………………………………………………………………………………………….….

[1 mark]

Form 1 ScienceChapter 1

5. Diagram 5 shows measuring apparatus P and Q.

(a) Label P and Q in Diagram 5.

[2 marks]

(b) What is the physical quantity that is measured by

P: …………………………………………………………………………………………………

Q: …………………………………………………………………………………………………

[2 marks]

(c) (i) If an astronaut has a mass of 70 kg on Earth. What will be his mass in space?

……………………………………………………………………………………………………

[1 mark]

(ii) Explain your answer in (c)(i).

……………………………………………………………………………………………………

……………………………………………………………………………………………………

[1 mark]

(d) State one difference between mass and weight.

………………………………………………………………………………………………………

………………………………………………………………………………………………………

[1 mark]

P: …………………………. Q: ………………………….

Diagram 5