# 2010 HKDSE Physics Mock Exam Paper Se

Topics: Force, Energy, Acceleration Pages: 34 (4797 words) Published: December 3, 2014
DSE-PHY-MKE-01a

HKDSE PHYSICS – Mock Exam Paper
Set 1
2010 HKDSE Physics Mock Exam Paper
Part A: Multiple Choices questions: 30 marks
Part B: Structured questions: 60 marks
Total: 100 Marks
Time Limit: 2 hours and 30 minutes

Try this challenging
challenging paper if
you are confident in your
Physics knowledge!
Topics
Topics includes: Mechanics
1. Position and Movement
2. Forces and Motion
3. Work and
and Energy
4. Momentum
5. Projectile Motion

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2010 HKDSE Physics Mock Exam Paper Set 1

DSE-PHY-MKE-01a

Part A: Multiple choices questions:
Take g = 10ms −2 unless specified.
Unless otherwise specified, all cells are assumed to have negligible internal resistance. 1.

Which of the following is a correct unit for the corresponding physical quantity? Physical quantity

Unit

I.
II.

Work
Heat Capacity

w s -1
J kg -1

III.

Electromotive Force

w s C-1

°

C -1

A.
B.
C.
D.

I only
II and III only
III only
None of the above

2.

Andy is taking the lift downward with uniform deceleration, the reading of the scale is 100N (Figure 1). Suddenly, the string of the lift is broken, Andy, the scale and the lift is under free fall motion (Figure 2). Fortunately, the lift is designed by Andy and there is a parachute system installed. After the parachute reaching the steady state, the lift is falling down with safe uniform speed at about 1 m s -1 . Which of the following is the possible reading of the scale in figure 2 and figure 3 respectively?

No problem! I have
parachute! Ha ha!

After
string
breaks

Figure 1.

A.
B.
C.
D.

Figure 2

Figure 2.
120 N
0N
0N
100 N

After
opening
parachute
reaching
state

Figure 3

Figure 3.
100N
120N
80N
100N

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P. 1

2010 HKDSE Physics Mock Exam Paper Set 1

3.

DSE-PHY-MKE-01a

Which of the following statement is always true?

A. Displacement travelled by a particle is always greater than the distance travelled by a particle.
B. If a particle is at rest now, its acceleration must be zero at that moment. C. The magnitude of Andy’s weight on the Earth is always equal to the magnitude of the force acting on the Earth by him.

D. If the body is increasing its speed on a rough surface, the friction acting on the body is always increasing accordingly.

4.

Which of the following situation require zero net force acting on the body at the said moment?

A. A man is playing bungee jump from a bridge and attains the lowest position, i.e. momentarily at rest at the lowest position.
B. A ball is throwing up and is now at the maximum position, i.e. momentarily at rest at the maximum point.
C. A car is moving with power provided by the engine with uniform speed. D. A parcel is moving on a conveyor belt rounding a corner with constant speed.

5.

In the figure below, there is an applied force of 105 N acting on the 10-kg block to the right. Both 10-kg and 5-kg blocks are moving to the right with constant acceleration of 5 m s −2 on a horizontal rough surface. Find the magnitude of the force acting between 10-kg block and 5-kg block.

(Hints: assume the friction acting on 10-kg block is double that acting on the 5-kg block.)

A.
B.
C.
D.

0N
25 N
35 N
55 N

P. 2

www.andylai.hk Prepared by Andy Lai

2010 HKDSE Physics Mock Exam Paper Set 1

6.

DSE-PHY-MKE-01a

The following figure shows the positions of a ball when t = 0s, 2s, 4s and 6s respectively. What is the average acceleration of the ball of the whole journey?

A. 0.375 m s -2
B. 0.75 m s -2
C. 1 m s -2
D. 2 m s -2

7.

Which of the...