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Physics CMCO Test 1

Total questions: 45

Worksheet time: 45mins

Name
Class
Date
1.

Which physical quantity is a base quantity?

a)

Electric current

b)

Weight

c)

Velocity

d)

Density

2.

Diagram 1 show a micrometer screw gauge.

a)

To calibrate the reading

b)

To measure internal diameter

c)

To grip the object measured

d)

To avoid over pressure to the object

3.

Diagram above shows the position of a bottle before and after the table cloth is snatched away.

Which physics concept causes the bottle remains stationary?

a)

inertia

b)

impulse

c)

momentum

d)

linear motion

4.
a)

A

b)

B

c)

C

d)

D

5.

a)

A

b)

B

c)

C

d)

D

6.

a)

A. To decrease momentum

b)

B. To increase friction

c)

C. To increase impact time

d)

D. To decrease impulse

7.

a)

A. 360 J

b)

B. 600 J

c)

C. 660 J

d)

D. 960 J

8.

a)

A. P Less pressure on the ground

b)

B. P Greater pressure on the ground

c)

C. Q Less pressure on the ground

d)

D. Q Greater pressure on the ground

9.

a)

A

b)

B

c)

C

d)

D

10.

a)

A.4.08 x 103 N

b)

B. 4.08 x 104 N

c)

C.4.08 x 105 N

d)

D.4.08 x 106 N

11.

Diagram 11 shows a top view of a sailboat sailing against the direction of wind. Which statement is correct?

a)

A.The air pressure at Q is lower than the air pressure at P

b)

B.The air pressure at P is lower than the air pressure at Q

c)

C.The speed of air at P is higher than the speed of air at Q

d)

D. The operation of the system is based on the Pascal’s principle

12.

a)

A

b)

B

c)

C

13.

A heater that has a specification of 240 V, 2.0 kW takes 10 s to raise the temperature of a liquid of mass 500 g by 5°C. What is the specific heat capacity of the liquid in?

a)

A. 0.8 Jkg-1 °C -1

b)

B. 8.0 Jkg-1 °C -1

c)

C. 8 x 10-3 Jkg-1 °C -1

d)

D. 8 x 103 Jkg-1 °C -1

14.

Diagram 13 shows trapped air in an empty container floating in the sea at noon. During night time the volume of trapped air reduced.

a)

A. Boyle's law

b)

B. Charle's law

c)

C. Pressure law

15.

a)

A

b)

B

c)

C

d)

D

16.
a)

A. 5m

b)

B. 8m

c)

C. 13m

d)

D. 16m

17.

a)
b)

A

c)

B

d)

C

e)

D

18.

Diagram 18 shows and object is placed in front of a convex lens with focal length of 10 cm. State the characteristics of the image formed?

a)

A. Diminished, virtual, upright

b)

B. Diminished, real, inverted

c)

C. Magnified, inverted, real

d)

D. Magnified, upright, virtual

19.

An object is placed 20.0 cm in front of concave lens with a focal length of 15.0 cm. What is the image distance?

a)

A. 5.00 cm

b)

B. 8.57 cm

c)

C. 35.00 cm

d)

D. 60.00 cm

20.

a)

A

b)

B

c)

C

d)

D

21.
a)

A. Reflection

b)

B. Refraction

c)

C. Diffraction

d)

D. Interference

22.

Why the low frequency sound is used in an ambulance siren?

a)

easy refracted

b)

easy diffracted

c)

experience interference

d)

produces louder sounds

23.

a)

A. 5.85 x 10–3 m

b)

B. 5.85 x10–6 m

c)

C. 7.22 x 10–8 m

d)

D. 7.22 x 10–11 m

24.

a)

A

b)

B

c)

C

d)

D

25.
a)
b)
c)
d)
26.

a)

A.the number of negative ions is greater than the number of positive ions.

b)

B.the number of positive ions is greater than the number of negative ions.

c)

C.negative ions is heavier than the positive ions.

d)

D.positive ions is heavier than the negative ions.

27.

a)

A. 1.5A

b)

B. 3.0A

c)

C. 4.0A

d)

D. 6.0A

28.

a)

A. More than 9.0V

b)

B. Less than 9.0V

c)

C. Same

29.

a)

A

b)

B

c)

C

d)

D

30.

a)

A

b)

B

c)

C

d)

D

31.

Which particle is emitted from the thermionic emission process?

a)

Neutron

b)

Proton

c)

Electron beam

d)

Alpha particle

32.
a)

A

b)

B

c)

C

d)

D

33.

a)

A. 2.5V

b)

B. 6.5V

c)

C. 9.0V

d)

D. 11.5V

34.

a)

A

b)

B

c)

C

d)

D

35.

a)

A

b)

B

c)

C

d)

D

36.

a)

A

b)

B

c)

C

d)

D

37.

The initial mass of a radioactive element is 15 g and its half-life is 7 days. Which statement is correct about the mass of radioactive?

a)

7 days earlier, the mass is 30 g

b)

14 days earlier, the mass is 120 g

c)

7 days earlier, the mass is 3.5 g

d)

14 days earlier, the mass is 7.5 g

38.
a)

A

b)

B

c)

C

d)

D

39.

The container used for storing radioactive waste must be made of

a)

lead

b)

wood

c)

plastic

d)

aluminium

40.
a)

A

b)

B

c)

C

d)

D

41.

a)

A. The strength of the magnet decreases by increasing the resistance of R

b)

B. End Y of the rod behaves as a north pole magnet

c)

C. The polarity at the ends of the rod depends on the strength of the current in the circuit

d)

D. End Y of the rod behaves as a south pole magnet

42.

a)

A. Replace with a new bulb

b)

B. Increase the number of dry cells

c)

C. Reverse the diode connection

d)

D. Connect a resistor parallel to the bulb

43.

a)

A. AND

b)

B. OR

c)

C. NAND

d)

D. NOR

44.

Which of the following shows the type of ray S and ray T?

A. S : Alpha, T: Beta

B. S : Alpha, T: Gamma

C. S : Beta, T: Gamma

D. S : Gamma, T: Beta

a)

A

b)

B

c)

C

d)

D

45.

a)

A

b)

B

c)

C

d)

D

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