Free Printable Pearlspedia PHYSICS YEAR 10

1.

A crane lifts an 8-m long steel girder weighing 2600 N up 15 m off the ground. The crane did ___ of work.

a)

0 J

b)

39000 J

c)

20800 J

d)

2600 J

2.

Potential energy is associated with ---.

a)

speed

b)

position

c)

direction

d)

temperature

3.

Kinetic energy is associated with ---.

a)

speed

b)

position

c)

direction

d)

temperature

4.

A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much work did they do climbing the stairs?

a)

400 J

b)

1200 J

c)

200 J

d)

120 J

5.

A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much power did they exert climbing the stairs?

a)

400 W

b)

1200 W

c)

200 W

d)

120 W

6.

How high up is a 3200-kg plane if it has 960000 J of potential energy?

a)

10 m

b)

30 m

c)

307200000 m

d)

300 m

7.

If a 1300-kg car has been lifted so it has 19500 J of potential energy, it was lifted up ---.

a)

1.5 m

b)

150 m

c)

15 m

d)

0.67 m

8.

How does conservation of energy explain why something that is falling should speed up?

a)

It gains kinetic energy because it gains potential energy.

b)

It loses kinetic energy because no work was done on it.

c)

It gains kinetic energy because it loses potential energy.

d)

It loses kinetic energy because the Earth gains potential energy.

9.

What is being transferred as you do work?

a)

Energy

b)

Heat

c)

Power

d)

Gravitational Potential Energy

10.

How do you calculate power?

a)

P = W/t

b)

P = E/t

c)

P = w * t

d)

P = bbq/chicken

11.

How do we calculate work?

a)

W = F * d

b)

w = f * D

c)

W = F * D

d)

w = f * d

12.

How much work is being done with 200 N of force over 426 meters?

a)

85,200 J

b)

45,620 J

c)

90,480 J

d)

62,329 J

13.

The SI unit of work is?

a)

Joules

b)

Watts

c)

Newtons

d)

meters

14.

The energy of movement is...?

a)

Kinetic

b)

Potential

15.

Energy that is stored is called...

a)

Kinetic

b)

Potential

16.

The SI unit for power is...?

a)

Watts

b)

Joules

c)

Newtons

d)

Meters

17.

The measure of hotness or coldness is (a) .

temperature or heat

18.

__________is the form of energy that is transferred between objects that are different temperatures.

Heat or Temperature

a)

Heat

b)

Temperature

19.

Thermal energy or heat energy moves from objects that are warmer to objects that are ___________.

colder or hotter

a)

colder

b)

hotter

20.

Radiation, conduction, and convection are three ways that heat is transferred or moves.

True or False

a)

false

b)

true

21.

__________is heat transfer or movement by direct contact and usually is through solids.

conduction or convection

a)

Conduction

b)

Convection

22.

Heat that is transferred or moved in circle currents through liquids or gases is __________________.

radiation or convection

a)

radiation

b)

convection

23.

In convection currents, cold air rises and hot air sinks.

True or false

a)

true

b)

false

24.

Heat from a lamp is an example of _____________.

radiation, convection or conduction

a)

radiation

b)

convection

c)

conduction

25.

Cooking pancakes in a skillet is as example of _____________.

radiation, conduction, convection

a)

radiation

b)

conduction

c)

convection

26.

The water in a lake is warmer on top than the water at the bottom of the lake. That is an example of _____________.

radiation, conduction, convection

a)

radiation

b)

conduction

c)

convection

27.

What are the three main scales of measuring heat?

a)

Kelvin

b)

Celsius

c)

Mercury

d)

Fahrenheit

28.

We can measure temperature using a...

a)

Microwave

b)

Thermometer

c)

Person

d)

Oven

29.

TRUE or FALSE: Heat and Temperature are the same thing.

a)

True

b)

False

30.

Heat is?

a)

The amount of matter in an object

b)

moving particles that change objects cold

c)

The average

d)

The movement of thermal energy in an object

31.

Mass is?

a)

The amount of matter in an object

b)

Increased kinetic energy

c)

Stored energy

d)

The amount of space something takes up

32.

At what temperature do all molecules stop moving?

a)

Absolute zero

b)

Negative thirty

c)

Zero degrees

d)

Positive twenty

33.

Which thermometers temperature is about 25° Celcius?

a)

Blue

b)

Green

c)

Blue

d)

Blue and Green

34.

What is the temperature on this thermometer?

a)

85° Fahrenheit

b)

80° Fahrenheit

c)

90° Fahrenheit

d)

95° Fahrenheit

35.

Boiling Water

a)

Conduction

b)

Convection

c)

Radiation

36.

Weather Patterns

a)

Conduction

b)

Convection

c)

Radiation

37.

Sun Bathing

a)

Conduction

b)

Convection

c)

Radiation

38.

A metal rod of length 40.00 cm at 20⁰C is heated to a temperature of 45⁰C. If the new length of the rod is 40.05 cm, calculate its linear expansivity.

a)

1.2 x 10^-5K^-1

b)

2.5 x 10^-5K^-1

c)

3.5 x 10^-5K^-1

d)

5.0 x 10^-5 K^-1

39.

Steel bars, each of length 3.0 m at 28⁰C, are to be used for constructing a rail line. If the linear expansivity of steel is 1.0 x 10^-5 K^-1, what is the safety gap that must be left between successive bars if the highest temperature expected is 40⁰C ?

a)

1.2 x 10^-1cm

b)

8.4 x 10^-2cm

c)

3.6 x 10^-2cm

d)

1.8 x 10^-2cm

40.

A wire, 20 m long, is heated from a temperature of 5⁰C to 55⁰C. If the change in length is 0.020 m, calculate the linear expansivity of the wire.

a)

1.0 x 10^-3 K^-1

b)

2.0 x 10^-4K^-1

c)

2.0 x 10^-5 K^-1

d)

2.0 x 10^-6K^-1

41.

A brass rod is 2m long at a certain temperature. Calculate the linear expansion of the rod for a temperature change of 100 K. (Linear expansivity of brass = 1.8 x 10^-5K^-1)

a)

0.3600 m

b)

0.1800 m

c)

0.0360 m

d)

0.0036 m

42.

A wire, 20 m long, is heated from a temperature of 5⁰C to 55⁰C. If the change in length is 0.020 m, calculate the linear expansivity of the wire.

a)

1.0 x 10^-3 K^-1

b)

2.0 x 10^-4K^-1

c)

2.0 x 10^-5 K^-1

d)

2.0 x 10^-6K^-1

43.

Steel bars, each of length 3.0 m at 28⁰C, are to be used for constructing a rail line. If the linear expansivity of steel is 1.0 x 10^-5 K^-1, what is the safety gap that must be left between successive bars if the highest temperature expected is 40⁰C ?

a)

1.2 x 10^-1cm

b)

8.4 x 10^-2cm

c)

3.6 x 10^-2cm

d)

1.8 x 10^-2cm

44.

An iron rod of length 50 m and at a temperature of 60⁰C is heated to 70⁰C. Calculate its new length.

(Linear expansivity of iron = 1.2 x 10^-5K^-1)

a)

50.006 m

b)

50.060 m

c)

51.600 m

d)

51.200 m

45.

Steel bars, each of length 3.0 m at 28⁰C, are to be used for constructing a rail line. If the linear expansivity of steel is 1.0 x 10^-5 K^-1, what is the safety gap that must be left between successive bars if the highest temperature expected is 40⁰C ?

a)

1.2 x 10^-1cm

b)

8.4 x 10^-2cm

c)

3.6 x 10^-2cm

d)

1.8 x 10^-2cm

46.

True or False: The density of a specific type of material never changes.

a)

True

b)

False

47.

Frank has a paper clip. It has a mass of 9g and a volume of 3cm³. What is its density?

a)

3 g/cm³

b)

1/3 g/cm³

c)

27 g/cm³

d)

39 g/cm³

48.

An iron rod of length 50 m and at a temperature of 60⁰C is heated to 70⁰C. Calculate its new length.

(Linear expansivity of iron = 1.2 x 10^-5K^-1)

a)

50.006 m

b)

50.060 m

c)

51.600 m

d)

51.200 m

49.

A brass rod is 2m long at a certain temperature. Calculate the linear expansion of the rod for a temperature change of 100 K. (Linear expansivity of brass = 1.8 x 10^-5K^-1)

a)

0.3600 m

b)

0.1800 m

c)

0.0360 m

d)

0.0036 m

50.

A metal rod of length 40.00 cm at 20⁰C is heated to a temperature of 45⁰C. If the new length of the rod is 40.05 cm, calculate its linear expansivity.

a)

1.2 x 10^-5K^-1

b)

2.5 x 10^-5K^-1

c)

3.5 x 10^-5K^-1

d)

5.0 x 10^-5 K^-1

51.

Steel bars, each of length 3.0 m at 28⁰C, are to be used for constructing a rail line. If the linear expansivity of steel is 1.0 x 10^-5 K^-1, what is the safety gap that must be left between successive bars if the highest temperature expected is 40⁰C ?

a)

1.2 x 10^-1cm

b)

8.4 x 10^-2cm

c)

3.6 x 10^-2cm

d)

1.8 x 10^-2cm

52.

A wire, 20 m long, is heated from a temperature of 5⁰C to 55⁰C. If the change in length is 0.020 m, calculate the linear expansivity of the wire.

a)

1.0 x 10^-3 K^-1

b)

2.0 x 10^-4K^-1

c)

2.0 x 10^-5 K^-1

d)

2.0 x 10^-6K^-1

53.

The transfer of thermal energy between objects of different temperatures is called...

a)

temperature

b)

heat

c)

none of these

54.

The faster an object moves, the ________ kinetic energy it has.

a)

more

b)

less

c)

none of the above

d)

all of the above

55.

A jacket is a good example of an . . .

a)

Insulator

b)

Investigator

c)

Insider

d)

Interrogator

56.

What is the BEST example of a conductor?

a)

A wooden block

b)

A ceramic mug

c)

A glass cup

d)

A metal bowl

57.

The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?

a)

radiation

b)

conduction

c)

convection

d)

insulation

58.

What is the definition of CONDUCTION?

a)

When heat is transferred from objects like rays of light or electromagnetically.

b)

a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.

c)

When heat transfers from objects that are touching.

d)

When heat transfers through the heater or AC in your house.

59.

An iron rod of length 50 m and at a temperature of 60⁰C is heated to 70⁰C. Calculate its new length.

(Linear expansivity of iron = 1.2 x 10^-5K^-1)

a)

50.006 m

b)

50.060 m

c)

51.600 m

d)

51.200 m

60.

A brass rod is 2m long at a certain temperature. Calculate the linear expansion of the rod for a temperature change of 100 K. (Linear expansivity of brass = 1.8 x 10^-5K^-1)

a)

0.3600 m

b)

0.1800 m

c)

0.0360 m

d)

0.0036 m

61.

A metal rod of length 40.00 cm at 20⁰C is heated to a temperature of 45⁰C. If the new length of the rod is 40.05 cm, calculate its linear expansivity.

a)

1.2 x 10^-5K^-1

b)

2.5 x 10^-5K^-1

c)

3.5 x 10^-5K^-1

d)

5.0 x 10^-5 K^-1

62.

Steel bars, each of length 3.0 m at 28⁰C, are to be used for constructing a rail line. If the linear expansivity of steel is 1.0 x 10^-5 K^-1, what is the safety gap that must be left between successive bars if the highest temperature expected is 40⁰C ?

a)

1.2 x 10^-1cm

b)

8.4 x 10^-2cm

c)

3.6 x 10^-2cm

d)

1.8 x 10^-2cm

63.

A wire, 20 m long, is heated from a temperature of 5⁰C to 55⁰C. If the change in length is 0.020 m, calculate the linear expansivity of the wire.

a)

1.0 x 10^-3 K^-1

b)

2.0 x 10^-4K^-1

c)

2.0 x 10^-5 K^-1

d)

2.0 x 10^-6K^-1

64.

A brass rod is 2m long at a certain temperature. Calculate the linear expansion of the rod for a temperature change of 100 K. (Linear expansivity of brass = 1.8 x 10^-5K^-1)

a)

0.3600 m

b)

0.1800 m

c)

0.0360 m

d)

0.0036 m

65.

A wire, 20 m long, is heated from a temperature of 5⁰C to 55⁰C. If the change in length is 0.020 m, calculate the linear expansivity of the wire.

a)

1.0 x 10^-3 K^-1

b)

2.0 x 10^-4K^-1

c)

2.0 x 10^-5 K^-1

d)

2.0 x 10^-6K^-1

66.

A metal rod of length 40.00 cm at 20⁰C is heated to a temperature of 45⁰C. If the new length of the rod is 40.05 cm, calculate its linear expansivity.

a)

1.2 x 10^-5K^-1

b)

2.5 x 10^-5K^-1

c)

3.5 x 10^-5K^-1

d)

5.0 x 10^-5 K^-1

67.

Steel bars, each of length 3.0 m at 28⁰C, are to be used for constructing a rail line. If the linear expansivity of steel is 1.0 x 10^-5 K^-1, what is the safety gap that must be left between successive bars if the highest temperature expected is 40⁰C ?

a)

1.2 x 10^-1cm

b)

8.4 x 10^-2cm

c)

3.6 x 10^-2cm

d)

1.8 x 10^-2cm

68.

Chlorine boils at 239 K. What is the boiling point of chlorine expressed in degrees Celsius?

a)

93 degrees Celsius

b)

34 degrees Celsius

c)

-61 degrees Celsius

d)

-34 degrees Celsius

69.

Which temperature scale has no negative temperatures?

a)

Celsius

b)

Fahrenheit

c)

Joule

d)

Kelvin

70.

Device/Object that measures temperature.

a)

Thermal energy

b)

Temperature

c)

Thermometer

d)

Heat

71.

This happens to water at 0 degrees Celsius.

a)

Boils

b)

Freezes

c)

Heats

d)

All of them

72.

This happens to water at 100 degrees Celsius.

a)

Boils

b)

Freezes

c)

Heats

d)

All of them

73.

A temperature scale that is used mostly in United States.
According to it, water freezes at 32 degrees and boils at 212 degrees.

a)

Celsius

b)

Fahrenheit

c)

Kelvin

d)

All of them

74.

Convert 35⁰F to Celsius

a)

1.6⁰

b)

1.7⁰C

c)

2.0⁰

d)

16.6⁰C

75.

Convert 72⁰F to Celsius

a)

2.2⁰C

b)

222⁰C

c)

22.2⁰C

d)

161.6⁰C

76.

Convert 30°C to Fahrenheit

a)

860°F

b)

86°F

c)

63.8°F

d)

56°F

77.

Convert: 186.5 K to C

a)

-86.4 C

b)

-50 C

c)

-68.4 C

d)

180 K

78.

The lower fixed and upper fixed point of a mercury - in – glass thermometer are marked Y and 180 mm respectively. On a particular day, the mercury meniscus rises to 45 mm. If the corresponding reading on a Celsius scale is 10 ^oC, calculate the value of Y.

a)

4mm

b)

18 mm

c)

30 mm

d)

135 mm.

79.

Which of the following properties is not considered in choosing mercury as a thermometric liquid?

a)

Density

b)

Expansivity

c)

Conductivity

d)

Capacity.

80.

Which of the following thermometers can be used to measure human body temperature?

a)

Constant volume gas thermometer

b)

Thermocouple thermometer

c)

Clinical thermometer

d)

Mercury-in-glass thermometer.

81.

A thermometer records 680mm Hg at steam point ad 440 mmHg at ice point. The temperature it records at 380 mmHg is

a)

-25 ^oC

b)

-20 ^oC

c)

20 ^oC

d)

25 ^oC

82.

A mercury-in-glass thermometer reads 4cm at ice point and 29cm at steam point. Calculate the temperature when the mercury level is at 9cm

a)

13⁰C

b)

20⁰C

c)

33⁰C

d)

38⁰C

83.

A centimeter scale is fixed next to an unmarked mercury-in-glass thermometer.

The ice point and the steam point are marked:

What is the temperature shown on the thermometer?

a)

44⁰C

b)

56⁰C

c)

60⁰C

d)

66⁰C

Pearlspedia PHYSICS YEAR 10

Total questions: 83

Worksheet time: 46mins

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