A-level物理试卷

无锡光华学校剑桥国际中心

2015

年

7

月第二学期期末考试试卷

Class: Senior one

Name:______________

Cambridge

International

Centre

End-term Examination for Senior

one

Subject:

Physics

Time:

90

minutes

Instructions:

Do not open this question paper until you are told to do so.

You are given time to read the questions. During this time, no writing is

allowed.

Write all answers on the question papers.

Answers must be written in English.

At the end of the test, submit the question paper with your answers on it.

1

Which statement involving multiples and sub-multilples of the base unit meter(m),

is correct?

A

1pm=10

-9

m

B

1nm=10

-6

m

C

1mm=10

6

m

D

1km=10

6

mm

2

When a force F moves its point of application though a displacement s in the

direction of

the force, the work W done by the force is given by

W=Fs

How many vector quantities and scalar quantities does this equation contain?

A

one scalar quantity and two vector quantities

B

one vector quantity and two scalar quantities

C

Three scalar quantities

D

three vector quantities

3

The diagram shows a displacement vector.

5.0km

53

0

What is the vertical component of this displacement vector?

A

3.0km

B

4.0km

C

5.0km

D

6.6km

4

What is the unit of power, expressed in SI base units?

A

kgm

2

s

-3

B

kgms

-3

C

kgms

-2

D

kgm

2

s

-1

5

In a cathode- ray tube, an electron is accelerated uniformly in a straight

line

from a speed of

4 ×

10

3

m s

–

1

to 2 ×

10

7

m s

–

1

over a distance of

10 mm.

What is the acceleration of the electron?

A

2 ×

10

3

m s

–

2

B

2 ×

10

6

m s

–

2

C

2 ×

10

13

m s

–

2

D

2 ×

10

16

m s

–

2

6

A cannon fires a cannonball with an initial speed v at an angle

?

to the

horizontal.

v

H

?

Which equation is correct for the maximum height H reached?

g

sin

?

g

2

sin

?

v

s

i

n

?

(

v

sin

?

)

2

A

H

?

B

H

=

C

H

?

D

H

=

2

v

2

v

2

g

2

g

7

The volume of air in a tyre is 9.0

×

1

0

< br>-3

m

3

.Atmospher ic pressure is 1.0

×

10

5

Pa.

When the tyre bursts

and the air expends to a volume of 2.7

×

10

-2

m

3

,the work

done against the atmosphere by the air is

A

1.8J

B

180J

C

1.8KJ

D

180KJ

8

The change in gravitational potential energy when a person of mass 70kg climbs a

cliff of

height 19m is

A

1.3

×

10

5

J

B

1.3KJ

C

13KJ

D

130KJ

9

Some weights are hung form a light rod AB. The rod is pivoted. The magnitude of

the force F required to balance the rod horizontally is

35cm

25c

40cm

F

2.5N

1.2N

A

1.0N

B

2.0N

C

3.0N

D

4.0N

10

A box of max 5.0kg is pulled along a horizontal floor by a force P of 25N,applied

at an angle of 20

0

to the horizontal. A frictional force F of 20N acts parallel to the

floor. The acceleration of the box is

R

P=25

N

20

0

F

=

W

A

5ms

-2

B

4ms

-2

C

4.7ms

-2

D

0.7ms

-2

11

The diagram shows the stem of a Celsius thermometer, marked to show initial

and final temperature values.

What is the temperature change expressed to an appropriate number of significant

figures?

A

14

0

C

B

20.5

0

C

C

21

0

C

D

22.0

0

C

12

An experiment is carried out to measure the velocity of a ball. The displacement

moved is (8.0

?

0.4)m. The time taken is (1.0

?

0.2)s. What is the average

velocity of

the ball san its uncertainty?

A

< /p>

(8.0

?

0.2)ms

-1

B

< /p>

(8.0

?

0.6)ms

-1

C

(8

?< /p>

1)ms

-1

D

(8

?

2) ms

-1

13

What is the magnitude of the momentum of a

?

-particle of mass 6.6

?

10

-27

kg

travelling with a speed of 2.0

?

10

7

ms

-1

?

A

1.3kgms

-1

B

13kgms

-1

C

1.3

?

1 0

-20

kgms

-1

D

1.3

?

10

-20

kgms

-1