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WorksheetsF4-Quiz-1 (3/Sept/2021)
Total questions: 7
Worksheet time: 5mins
The following are steps in the preparation of a standard solution through dilution method.
P- Calculate the volume of solution to be diluted.
Q- Add distilled water until it reaches the calibration mark.
R- Use a pipette to draw up the needed volume of the stock solution.
S - Transfer the solution into a volumetric flask.
Choose the correct sequence of the steps.
A. R, Q, R, S
B. P, R, Q, S
C. P, R, S, Q
D. R, S, P, Q
The sting of an ant contains methanoic acid.
Which of the following substances is the most suitable to be applied to treat ant sting?
A. Sodium hydroxide
B. Toothpaste
C. Ethanol
D. Cooking oil
Which of the following pairs of compounds will react in a neutralization reaction?
I. Hydrochloric acid and potassium hydroxide
II. Sulphuric acid and solid copper (II) oxide
III. Nitric acid and solid calcium carbonate
IV. Hydrochloric acid and zinc metal
A. I and II only
B. III and IV only
C. I, III and IV only
D. I, II, III and IV
Diagram 2 shows one end of a slinky spring being moved back and forth to produce a transverse wave.
What is the wavelength of the wave?
A. 5 cm
B. 10 cm
C. 15 cm
D. 20 cm
What is the physical quantity transferred in wave motion from one point to another?
A. Weight
B. Wavelength
C. Speed
D. Energy
The diagram below shows a water wave produced by a spherical dipper.
The velocity of the wave formed by the dipper is 3.5 ms-1.
What is the frequency of the oscillation of the dipper?
A. 5.83 Hz
B. 11.67 Hz
C. 7.28 Hz
D. 13.15 Hz
The diagram below shows a load tied to a spring which oscillates vertically in the water.
Which of the following displacement-time graphs shows the oscillation of the load?
