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Physics #&%#@#

Total questions: 75

Worksheet time: 38mins

Name
Class
Date
1.

What is the term used to any part of the universe under study?

a)

Interaction

b)

System

c)

Surroundings

d)

Body

2.

Which of the ff. devices has chambers or cylinders where mixture of fuel and air is burned?

a)

Heat engine

b)

Nuclear reactors

c)

Internal combustion engine

d)

Thermal pumps

3.

When heating a solution, a scientist detects a temperature increase in the solution during a period. Which of the following statements accurately characterizes the solution during this period?

a)

The solution is at boiling point

b)

The solution is undergoing a phase change.

c)

The velocity of molecules in the solution is increasing.

d)

The solution's temperature increase is proportional to its vaporization.

4.

An equal amount of heat are absorbed by 100g samples of various solid metals with differing specific heat values. Which of the following statements is true regarding metals and their specific heat?

a)

The metal with the smallest specific heat will undergo the smallest change to temperature.

b)

The metal with the smallest specific heat will resist melting to a greater degree at its melting point.

c)

The metal with the greatest specific heat will undergo the smallest change to temperature.

d)

The metal with the greatest specific heat will resist melting to a greater degree at its melting point.

5.

Additional gas is pumped inside a rigid container that stores compressed gas. Which of the following is a true statement about this system?

a)

Pressure is constant throughout the compression.

b)

There is no work done on the container.

c)

The molar concentration of gas is decreasing.

d)

The volume of the container is decreasing.

6.

Which of the following scenarios VIOLATES the first law of thermodynamics, "the conservation of energy?"

a)

A spring that extends and retracts forever, alternating between potential and kinetic energy.

b)

An isolated electrochemical cell that indefinitely generates an electrical current

c)

An efficient wind turbine that converts all of its energy from mechanical movement into electrical potential energy.

d)

A machine that converts heat energy into work energy

7.

A hot object is placed next to a cold object so that they are touching. Which of the following statementss is TRUE?

a)

Heat will transfer from the hot object to the cold object because the hot object has a higher temperature.

b)

The two objects are in thermal equilibrium.

c)

Internal energy will transfer from the hot object to the cold object because the hot object has greater internal energy.

d)

Options A and C.

8.

What is the derived unit of work?

a)

Newton per meter

b)

Joule

c)

Newton-meter

d)

Newton per Joule

9.

What is the SI fundamental unit for temperature?

a)

Celsius

b)

Fahrenheit

c)

Kelvin

d)

Rankine

10.

What refers to the addition and reduction of mass and energy from the system?

a)

Close system

b)

Insulated system

c)

Open system

d)

Isolated system

11.

What quantity is referred to as the rate of change in velocity?

a)

Speed

b)

Acceleration

c)

Direction

d)

Magnitude

12.

What is the direction of gravity?

a)

Upward

b)

to the right

c)

Downward

d)

to the left

13.

Which of the following is equivalent of 32 ft/s^2

a)

9.8 km/s^2

b)

0.0098 km/s^2

c)

98 km/s^2

d)

0.98 m/s^2

14.

Which of the following will NOT affect the travel of a free-falling object?

a)

Air resistance

b)

Gravity

c)

Mass

d)

External forces

15.

What is TRUE about reference point?

a)

Reference point is always equal to zero

b)

Reference point is the origin to end

c)

Reference point is uniform

d)

Reference point varies

16.

What is acceleration?

a)

It is the rate at which velocity change in time

b)

It is the change in time over velocity

c)

It is the change in velocity and time

d)

It is the rate of change of velocity

17.

Which of the following DOES NOT denote direction?

a)

Arrow

b)

Going up or down

c)

Negative and positive sign

d)

Cartesian plane

18.

What quantity has magitude, unit, and a direction in space?

a)

Area

b)

Scalar

c)

Unit

d)

Vector

19.

Which branch of physics deals with motion and the forces producing motion?

a)

Optics

b)

Chemistry

c)

Mechanics

d)

Thermodynamics

20.

What is the meaning of the Greek word "dynami"?

a)

Force

b)

Reaction

c)

Relationship

d)

Activity

21.

What is the study that involves the relationships of heat, mechanical work, and other aspects of energy and energy transfer

a)

Thermodynamics

b)

Mechanics

c)

Physics

d)

Astronomy

22.

What system will NOT let mass and heat enter or leave with the system?

a)

Isothermal system

b)

Closed system

c)

Open system

d)

Isolated system

23.

What aspect of the thermodynamic system will NOT give change to it if it undergoes a process?

a)

Mass

b)

Pressure

c)

Volume

d)

Time

24.

What kind of system is utilized in the growth of plants and animals?

a)

Adiabatic process

b)

Closed system

c)

Open system

d)

Isolated system

25.

Which term describes the measure of the average kinetic energy of the particles that make up an object?

a)

Mass

b)

Specific heat

c)

Temperature

d)

Time

26.

What device transfers thermal energy from a cooler region to a warmer region?

a)

Heat engine

b)

Pressure cooker

c)

Internal combustion engine

d)

Refrigerator

27.

Quantities such as pressure, volume, temperature, and amount of substance that describe the conditions in which a particular material exists

a)

State variables

b)

Equation of state

c)

Moles (n)

d)

Molar mass (M)

28.

It is the expression among the relationship of p, V, T, and mtotal (or n)

a)

State variables

b)

Equation of state

c)

Moles (n)

d)

Molar mass (M)

29.

Which is used easily to determine the amount of gas

a)

State variables

b)

Equation of state

c)

Moles (n)

d)

Molar mass (M)

30.

What type of equation is pV = nRT

a)

Ideal gas equation

b)

Thermodynamic equation

c)

Gravitational equation

d)

Heat equation

31.

What is the correct value of Gas constant R?

a)

0.08206

b)

0.02806

c)

0.08206 x 10^11

d)

0.02806 x 10^11

32.

What is the unit of the Gas constant R?

a)

(L x atm)/(mol x K)

b)

(mol x K)/(L x atm)

c)

(mol x L)/(K x atm)

d)

(K x atm)/(mol x L)

33.

How do you find the value of K?

a)

C + 273.15

b)

C + 278.15

c)

C + 237.15

d)

C + 287.15

34.

What do you call (everything around the system)

a)

Surroundings

b)

Body

c)

Branch

d)

Heat

35.

A process in which there are changes in the state of thermodynamic system

a)

Thermodynamic process

b)

Reversible process

c)

Irreversible process

d)

Boiling process

36.

System and its surroundings can be returned to their initial state

a)

Thermodynamic process

b)

Reversible process

c)

Irreversible process

d)

Boiling process

37.

System and its surroundings cannot be returned to their initial state

a)

Thermodynamic process

b)

Reversible process

c)

Irreversible process

d)

Boiling process

38.

Which is NOT an example of Open system

a)

Refrigerator

b)

Dog

c)

Frying pan

d)

Sealed pressure cooker

39.

Which is NOT an example of Closed system

a)

Refrigerator

b)

Sealed pressure cooker

c)

Coffee with lid

d)

container

40.

Which is an example of Isolated system

a)

Aquaflask

b)

Frying pan

c)

Boiling pot of sealed water

d)

Human

41.

It is a series of processes that starts and ends at the same conditions

a)

Reversible process

b)

Irreversible process

c)

Thermodynamic cycle

d)

Thermodynamic process

42.

Heat is positive...

a)

when heat is added to the system

b)

when heat is removed

from the system

c)

when work is done by the system

d)

when work is done on

the system

43.

Heat is negative...

a)

when heat is added to the system

b)

when heat is removed

from the system

c)

when work is done by the system

d)

when work is done on

the system

44.

Work is negative...

a)

when heat is added to the system

b)

when heat is removed

from the system

c)

when work is done by the system

d)

when work is done on

the system

45.

Work is positive...

a)

when heat is added to the system

b)

when heat is removed

from the system

c)

when work is done by the system

d)

when work is done on

the system

46.

Who determined the density of the Earth?

a)

Henry Cavendish

b)

Erathosthenes

c)

Tycho Brahe

d)

Nicolaus Copernicus

47.

Who determined the size/circumference of the Earth?

a)

Henry Cavendish

b)

Erathosthenes

c)

Tycho Brahe

d)

Nicolaus Copernicus

48.

Whose theory claims that Earth is the center of the universe

a)

Henry Cavendish

b)

Erathosthenes

c)

Tycho Brahe

d)

Nicolaus Copernicus

49.

Whose theory claims that Sun is the center of the universe

a)

Henry Cavendish

b)

Erathosthenes

c)

Tycho Brahe

d)

Nicolaus Copernicus

50.

The closet point of a planet to the sun

a)

Perihelion

b)

Aphelion

c)

Fastest

d)

Slowest

51.

The farthest point of a planet to the sun

a)

Perihelion

b)

Aphelion

c)

Fastest

d)

Slowest

52.

How do planets move in Perihelion?

a)

Perihelion

b)

Aphelion

c)

Fastest

d)

Slowest

53.

How do planets move in Aphelion?

a)

Perihelion

b)

Aphelion

c)

Fastest

d)

Slowest

54.

Time it takes to make one complete revolution around the sun

a)

Period

b)

Radius

c)

Time

d)

Distance

55.

Circular motion at constant speed

a)

Uniform circular motion

b)

Tangential velocity

c)

Centripetal acceleration

d)

Acceleration

56.

It moves in a circular path

a)

Uniform circular motion

b)

Tangential velocity

c)

Centripetal acceleration

d)

Acceleration

57.

First to describe the motions of massive objects

a)

Force

b)

Contact force

c)

Non-contact force

d)

Isaac Newton

58.

Interactions between two bodies or a body and its environment

a)

Force

b)

Contact force

c)

Non-contact force

d)

Isaac Newton

59.

Direct force between two bodies

a)

Force

b)

Contact force

c)

Non-contact force

d)

Isaac Newton

60.

also known as "action at a distance force"

a)

Force

b)

Contact force

c)

Non-contact force

d)

Isaac Newton

61.

A push that the surface exerts on an object

a)

Normal force

b)

Friction force

c)

Tension force

d)

Drag force

62.

Opposite of the direction of the force exerted; it can either be static, sliding, rolling

a)

Normal force

b)

Friction force

c)

Tension force

d)

Drag force

63.

Pulling force exerted on an object; towards the direction of exertion

a)

Normal force

b)

Friction force

c)

Tension force

d)

Drag force

64.

Force that exerts on a flying object which has air resistance

a)

Normal force

b)

Friction force

c)

Tension force

d)

Drag force

65.

Attraction and repulsion of opposite poles

a)

Magnetic force

b)

Electrostatic force

c)

Gravitational force

d)

Drag force

66.

Attraction/repulsion of electrically charged objects

a)

Magnetic force

b)

Electrostatic force

c)

Gravitational force

d)

Weight

67.

Force that pulls toward the center of object

a)

Magnetic force

b)

Electrostatic force

c)

Gravitational force

d)

Weight

68.

Gravitational force exerted on a body

a)

Magnetic force

b)

Electrostatic force

c)

Gravitational force

d)

Weight

69.

Sun is center

a)

Heliocentrism

b)

Geoheliocentrism

70.

Earth is center

a)

Heliocentrism

b)

Geoheliocentrism

71.

Gravitational force exerted on a body

a)

Magnetic force

b)

Electrostatic force

c)

Gravitational force

d)

Weight

72.

Gravitational force exerted on a body

a)

Magnetic force

b)

Electrostatic force

c)

Gravitational force

d)

Weight

73.

Which formula is used to determine the force exerted on two planets towards each other

a)

F = G (m1 x m2)r2G\ \frac{\left(m1\ x\ m2\right)}{r^2}

b)

(T1T2)2 =(r1r2)3\left(\frac{T_1}{T_2}\right)^2\ =\left(\frac{r_1}{r_2}\right)^3

c)

pV = nRT

d)

A ac =v2r     or  ac = 4π2rT2a_{c\ }=\frac{v^2}{r}\ \ \ \ \ or\ \ a_c\ =\ \frac{4\pi^2r}{T^2}

74.

Which formula is used to determine the proportion of periods of planets

a)

F = G (m1 x m2)r2G\ \frac{\left(m1\ x\ m2\right)}{r^2}

b)

(T1T2)2 =(r1r2)3\left(\frac{T_1}{T_2}\right)^2\ =\left(\frac{r_1}{r_2}\right)^3

c)

pV = nRT

d)

A ac =v2r     or  ac = 4π2rT2a_{c\ }=\frac{v^2}{r}\ \ \ \ \ or\ \ a_c\ =\ \frac{4\pi^2r}{T^2}

75.

Which formula is used for determining circular motion

a)

F = G (m1 x m2)r2G\ \frac{\left(m1\ x\ m2\right)}{r^2}

b)

(T1T2)2 =(r1r2)3\left(\frac{T_1}{T_2}\right)^2\ =\left(\frac{r_1}{r_2}\right)^3

c)

pV = nRT

d)

A ac =v2r     or  ac = 4π2rT2a_{c\ }=\frac{v^2}{r}\ \ \ \ \ or\ \ a_c\ =\ \frac{4\pi^2r}{T^2}

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