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fzksWorksheet 2018 #2 form 4

measurement 21 1/4 hour This document consists of 7 pages. 0 MARKS

ANSWER ALL QUESTIONS

NAME & CLASS

1. The volume of an irregular solid can be measured using a 100 cm3 measuring cylinder.

Figure 1.1: Measuring volume of irregular solid

(a) Why should the measuring cylinder be at least half filled?

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(b) Write down the volume of water

volume of water = ................................... []

(c) Write down the volume of water and stone

volume of water and stone = ................................... []

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Question 1 continues. . . form 4 Worksheet 2018 #2

(d) Describe the steps required to find the volume of an irregular solid.

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(e) Write down three precautions that must be taken.

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2. What is the difference between analogue and digital?

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(a) Record the following readings on the 60 s stopwatch- [ignore the needles’ position on 0]

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Question 2 continues. . . form 4 Worksheet 2018 #2

Figure 2.1

(b) Record the following readings on the 30 s stopwatch- [ignore the needles’ position on 0]

3. What is a pendulum?

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(a) Label on the figure below: amplitude, mean/rest, one oscillation

(b) Define frequency, f of oscillation and give its unit.

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(c) Define the term time period, T

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Question 3 continues. . . form 4 Worksheet 2018 #2

Figure 2.2

(d) Hence deduce that f = 1T

(e) The time period of an oscillation is 4 seconds. Find the freqency.

frequency = ................................... []

(f) The time period of an oscillation is 2 seconds. Find the freqency.

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Question 3 continues. . . form 4 Worksheet 2018 #2

Figure 3.1

frequency = ................................... []

(g) The time period of an oscillation is 0.1 seconds. Find the freqency.

frequency = ................................... []

(h) The frequency of an oscillation is 10 Hz. Find the time period, T .

T = ................................... []

(i) The frequency of an oscillation is 10 Hz. Find the time period, T .

T = ................................... []

(j) The frequency of an oscillation is 25 Hz. Find the time period, T .

T = ................................... []

(k) The time taken for a pendulum to move from the amplitude to the mean position is 0.3 s. Calculatethe time period and the frequency.

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Question 3 continues. . . form 4 Worksheet 2018 #2

Time period = ...................................

frequency = ................................... []

(l) The time taken for a pendulum to move from the amplitude to the mean position is 0.4 s. Calculatethe time period and the frequency.

Time period = ...................................

frequency = ................................... []

(m) The time taken for a pendulum to move from the amplitude to the mean position is 1.5 s. Calculatethe time period and the frequency.

Time period = ...................................

frequency = ................................... []

(n) The time taken for a pendulum to move from the amplitude to the other amplitude position is2.5 s. Calculate the time period and the frequency.

Time period = ...................................

frequency = ................................... []

(o) The time taken for a pendulum to move from the amplitude to the other amplitude position is 5 s.Calculate the time period and the frequency.

Time period = ...................................

frequency = ................................... []

(p) The time taken for a pendulum to move from the amplitude to the other amplitude position is0.02 s. Calculate the time period and the frequency.

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c©fzks form 4 Worksheet 2018 #2

Time period = ...................................

frequency = ................................... []

4. Fill in the blanks

Kinematics is the study of . We always use speed=distance over

time. This equation is used only when speed is . Acceleration is in

velocity over . is decrease in velocity time.

5. Draw graphs for the following:

(a) Body accelerates for 5 s and then moves with constant speed before decelerating to rest

(b) Body moves at constant speed for 10 seconds and then accelerates for 8 seconds before deceleratingto rest

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