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Physics QUIZ For FINAL EXAM MS

Total questions: 70

Worksheet time: 1hrs 10mins

Name
Class
Date
1.
7. A plastic rod is rubbed with a cloth. The rod becomes positively charged. What happens to the plastic rod and what is the charge on the cloth?
a)
A
b)
B
c)
C
d)
D
2.
8. In which circuit do both lamps light?
a)
A
b)
B
c)
C
d)
D
3.
9. Which combination of logic gates gives the truth table shown?
a)
A
b)
B
c)
C
d)
D
4.
10. The diagram shows a bar magnet and four plotting compasses. Which compass correctly shows the direction of the magnetic field due to the magnet?
a)
A
b)
B
c)
C
d)
D
5.
11. A student sets up four experiments using bar magnets and other metal objects. The N and S poles of the bar magnets are labelled N and S.
a)
A 1 and 2
b)
B 1 and 3
c)
C 2 and 4
d)
D 3 and 4
6.
12. The diagram shows part of a long current-carrying conductor. At which point is the magnetic field strongest?
a)
A
b)
B
c)
C
d)
D
7.
13. Which diagram shows the magnetic field around a straight, current-carrying wire?
a)
A
b)
B
c)
C
d)
D
8.
14. The diagram shows apparatus that can be used to make a magnet.
a)
A
b)
B
c)
C
d)
D
9.
15. The diagram shows a coil of wire wrapped around a soft-iron rod. The wire is connected to a d.c. power supply as indicated. The apparatus is in a region which is totally shielded from the Earth’s magnetic field.
a)
A towards the bottom of the page
b)
B towards the left of the page
c)
C towards the right of the page
d)
D towards the top of the page
10.
16. The diagram shows a bar magnet and a coil of wire. The bar magnet is moved at the same speed in each experiment. In which situation is the largest electromotive force (e.m.f.) induced?
a)
A
b)
B
c)
C
d)
D
11.
17. The diagram shows a wire placed between two magnetic poles of equal strength. A current passes through the wire in the direction shown. The current causes a downward force on the wire.
a)
A
b)
B
c)
C
d)
D
12.
18. The diagram shows a wire between two Magnets. An electromotive force (e.m.f.) is induced in the wire when it is moved up between the two magnets. Four tests are done. 1 The direction of movement of the wire is reversed. 2 The direction of the magnetic field is reversed. 3 The wire is moved more quickly. 4 The magnetic field strength is decreased. Which tests will induce a smaller e.m.f. in the wire?
a)
A 1 and 2
b)
B 1 and 3
c)
C 3 and 4
d)
D 4 only
13.
19. Which graph represents an alternating current (a.c.)?
a)
A
b)
B
c)
C
d)
D
14.
20. A transformer is needed to convert a supply of 240Va.c. into 4800Va.c..
a)
A
b)
B
c)
C
d)
D
15.
The protons and neutrons are inside of the nucleus, and contain almost all of _____
a)
the charge of the atom
b)
the volume of the atom
c)
the mass of the atom
d)
the kinetic energy of the atom
16.
Which of the following is a positively charged subatomic particle found in the nucleus of an atom?
a)
Electron
b)
Proton
c)
Neutron
d)
Quark
17.
Isotopes of the same element have different ____________. 
a)
 numbers of protons  
b)
numbers of electrons
c)
 symbols 
d)
numbers of neutrons
18.
The splitting of a nucleus into smaller nuclei is
a)
fusion
b)
fission
c)
half-life
d)
gamma radiation
19.
This is an example of...
a)
Fission  reaction
b)
Fusion reaction
c)
Decomposition reaction
d)
Decay
20.

What is the nucleon number of this carbon atom

a)

12

b)

6

c)

2

d)

1

21.
Different isotopes have...
a)
different masses
b)
different atomic numbers
c)
different electrons
d)
different protons
22.
What is the name of the pictured isotope?
a)
Copper-29
b)
Copper-63
c)
Copper-34
d)
CopperWopperHopperBopper
23.

In Rutherford's famous experiment, the vast majority of alpha particles passed straight through the gold foil. What does that tell us?

a)

The nucleus is very small and atoms are mostly empty space

b)

The plum pudding model was correct

c)

Atoms are tiny

d)

The nucleus is positive

24.

Solve the nuclear fusion reaction 42He+21H→

a)

63Li

b)

73C

c)

104Li

d)

113Ne

25.

In Rutherford's experiment, a very small number of alpha particles bounced straight back off the gold foil.

a)

True

b)

False

26.

The most penetrating form of nuclear radiation is...

a)

alpha

b)

beta

c)

gamma

d)

heat

27.

The unit of activity is...

a)

Becquerel

b)

Seconds

c)

Metres

d)

Sievert

28.

Which best describes the structure of a beta particle?

a)

helium nucleus

b)

slow moving proton

c)

fast moving electron

d)

high frequency light wave

29.

What is the half-life of this radioactive substance?

a)

5700 years

b)

11400 years

c)

17100 years

d)

22800 years

30.

The overall charge on an alpha particle is...

a)

-1

b)

0

c)

+1

d)

+2

31.

The overall charge on a gamma ray is...

a)

-1

b)

0

c)

+1

d)

+2

32.

The most ionising form of nuclear radiation is...

a)

alpha

b)

beta

c)

gamma

d)

infrared

33.

A radioactive source has an initial activity of 200kBq and a half-life of 15 days. How many days would it take for the activity to fall to 25kBq?

a)

15

b)

30

c)

45

d)

60

34.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
beta
c)
gamma 
d)
none
35.

Ratio of voltages is equal to ratio of _______________________.

a)

number of iron sheets in core

b)

number of coil

c)

number of turns in coil

d)

number of electromagnetic

36.

This picture is an example of a ________________.

a)

Motor

b)

Generator

c)

Step-up transformer

d)

Step-down transformer

37.

A transformer has 100 turns in the primary coil and 25 turns in the secondary coil. When a 120 V is applied to the primary coil, what is the voltage in the secondary coil?

a)

480V

b)

30V

c)

20V

d)

450V

38.

The function of a transformer is to ...

a)

raise and lower the apparent power levels

b)

transfer DC voltage from the primary winding to the secondary winding

c)

increase or decrease A.C voltage or A.C current levels

d)

transform mechanical energy into electrical energy

39.

A transformer is needed to convert a supply of 240 V a.c. into 4800 V a.c.

a)

A

b)

B

c)

C

d)

D

40.

Which is the symbol for a transformer?

a)
b)
c)
d)
41.

Vp =14000V_{p\ }=14000  , Np=1500N_p=1500  and Ns=375N_s=375  . What is the secondary voltage?

a)

56000

b)

1500

c)

3500

d)

10000

42.
Thicker wires have _______ resistance than thinner wires.
a)
more
b)
less
c)
the same
43.
As the resistance in a circuit increases, the electric current __________.
a)
increases
b)
decreases
c)
stays the same
44.
What is the unit for resistance?
a)
Volts
b)
Amperes
c)
Ohms
45.
Which formulas represents Ohm's law?
a)
V=IR
b)
R=IV
c)
I=RV
46.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
47.

10C of charge flows in a wire every 2 seconds. Calculate the current in the wire.

a)

5 Ohms

b)

5 Amps

c)

0.2 Volts

d)

0.2 Amps

48.

A plastic rod is rubbed with a cloth. The rod becomes positively charged.

What happens to the plastic rod and what is the charge on the cloth?

a)

The plastic rod gains electrons and the cloth becomes negatively charged

b)

The plastic rod gains electrons and the cloth becomes positively charged

c)

The plastic rod loses electrons and the cloth becomes negatively charged

d)

The plastic rod loses electrons and the cloth becomes positively charged

49.

Which component has the following characteristic graph - showing how the current varies as the voltage is changed?

a)

bulb

b)

resistor

c)

diode

d)

LDR

50.

Which component has the following characteristic graph - showing how the current varies as the voltage is changed?

a)

bulb

b)

fuse

c)

resistor

d)

diode

51.

Which of these 4 circuits can be used to measure how the current varies with a change in voltage across a bulb?

a)
b)
c)
d)
52.

Which component matches this symbol?

a)

fuse

b)

LDR

c)

thermistor

d)

LED

53.

Which component matches this symbol?

a)

LDR

b)

LED

c)

Diode

d)

Bulb

54.

Which component matches this symbol?

a)

LDR

b)

Fuse

c)

Cell

d)

Variable resistor

55.

a)

A

b)

B

c)

C

d)

D

56.
a)

A

b)

B

c)

C

d)

D

57.

In the circuits shown, all resistors are identical

Which circuit has the least resistance?

a)
b)
c)
d)
58.

An electric bulb is connected to a 220V generator. The current is 0.50 A. What is the power of the bulb?

a)

440 W

b)

110 W

c)

55 W

d)

0.0023 W

59.

What is the unit of electrical power?

a)

ampere

b)

joule

c)

volt

d)

watt

60.

What is the unit of electromotive force?

a)

ampere

b)

newton

c)

ohm

d)

volt

61.

The circuit shown contains a battery, a 6 ohms resistor and two meters X and Y. One meter records current and one meter records potential difference.

a)

A

b)

B

c)

C

d)

D

62.

Which quantities is a voltmeter used to measure?

a)

current and e.m.f. only

b)

current and p.d. only

c)

e.m.f. and p.d. only

d)

e.m.f., current and p.d

63.

The circuit shown contains three ammeters, X, Y and Z. Which ammeter has the largest reading?

a)

A

b)

B

c)

C

d)

D

64.

A magnet is suspended from a spring so that it can move freely inside a stationary coil. The coil is

connected to a sensitive centre-zero galvanometer.

The magnet repeatedly moves slowly up and down.

What does the galvanometer show?

a)

a constantly changing reading

b)

a steady reading to the left

c)

a steady reading to the right

d)

a steady reading of zero

65.

A wire is placed between the poles of a horseshoe magnet. There is a current in the wire in the

direction shown, and this causes a force to act on the wire.


Which arrangement or arrangements will cause a force in the same direction as the original

arrangement?

a)

P, Q and R

b)

P and Q only

c)

P only

d)

R only

66.

A current-carrying coil in a magnetic field experiences a turning effect.

How can the turning effect be increased?

a)

Increase the number of turns on the coil.

b)

Reduce the size of the current.

c)

Reverse the direction of the magnetic field.

d)

Use thinner wire for the coil.

67.

Which of these is not a magnetic material?

a)

aluminium

b)

steel

c)

nickel

d)

iron

68.

Which of these appliances does not use the effect of force on a current in a magnetic field?

a)

loudspeaker

b)

motor

c)

lightbulb

d)

electric fan

69.

An electromagnet with a soft iron core is connected to a battery and an open switch. The soft iron core is just above some small soft iron nails.

a)

A

b)

B

c)

C

d)

D

70.
a)

A

b)

B

c)

C

d)

D

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