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Physics 1-100

Total questions: 100

Worksheet time: 50mins

Name
Class
Date
1.

1. Standard unit of mass

a)

kg

b)

g

c)

N

d)

lb

2.

The distance the light travels in a vacuum in 1/299,792,458 second

a)

meter

b)

Inch

c)

yard

d)

  feet

3.

SI unit of work

a)

Newton

b)

Watt

c)

Newton-second

d)

Joule

4.

SI unit of power

a)

Newton-second

b)

Watt

c)

Joule

d)

Newton

5.

SI unit of temperature

a)

Celsius

b)

 

Fahrenheit

c)

Rankine

d)

Kelvin

6.

SI unit of luminous intensity

a)

Lumens

b)

Lux

c)

Candlepower

d)

Candela

7.

Unit of relative intensity

a)

Pa

b)

unitless

c)

C.N-m/s

d)

N-m

8.

SI unit of pressure

a)

N-m

b)

N/m

c)

Pa

d)

N-m/s

9.

Equivalent unit of Pascal

a)

N/m^2

b)

D.N/nm

c)

N/nm^2

d)

N/m

10.

1 Bar (Pressure) =        Pascals

a)

10 000

b)

1 000 000

c)

100 000

d)

1 000

11.

SI unit of intensity

a)

N/m^2

b)

kg/m^2

c)

Joule/m^2

d)

watt/m^2

12.

SI unit of potential difference

a)

volt

b)

coulomb

c)

weber

d)

watt

13.

1 volt = 1 ___

a)

joule/coulomb

b)

joule/watt

c)

watt/coulomb

d)

watt/joule

14.

1 election volt = ___ joules

a)

1.6 x 10^-20

b)

1.6 x 10^-17

c)

1.6 x 10^-19

d)

1.6 x 10^-18

15.

Unit of capacitance

a)

Gauss

b)

Coulomb

c)

Weber

d)

Farad

16.

farad = ___

a)

coulomb/volt

b)

joule/volt

c)

joule/coulomb

d)

coulomb/joule

17.

Unit of electric current

a)

Volt

b)

Ampere

c)

Watt

d)

Coulomb

18.

ampere = ___

a)

watt/second

b)

volt/second

c)

coulomb/second

d)

joule/second

19.

Unit of resistance

a)

Volt

b)

Ampere

c)

Ohm

d)

Watt

20.

ohm = ___

a)

volt/ampere

b)

joule/ampere

c)

coulomb/ampere

d)

watt/ampere

21.

Unit of luminous intensity

a)

footcandle

b)

lumen

c)

candela

d)

lux

22.

Unit of luminous flux

a)

Lumen

b)

Lux

c)

Footcandle

d)

Candela

23.

Candela = ___

a)

lumen/m^2

b)

lumen/steradian

c)

footcandle/steradian

d)

lux/steradian

24.

Unit of luminous efficiency

a)

lumen/watt

b)

lumen/volt

c)

lumen/coulomb

d)

lumen/ampere

25.

Unit of illumination

a)

Candela

b)

Lumen

c)

Lux

d)

Lumen/watt

26.

Lux =

a)

Lumen/m^2

b)

Lumen/cm^2

c)

Lumen/ft^2

d)

Lumen/in^2

27.

Footcandle = ___

a)

Lumen/cm^2

b)

Lumen/m^2

c)

Lumen/ft^2

d)

Lumen/in^2

28.

1 newton = ___ dynes

a)

1 000

b)

100 000

c)

1 000 000

d)

10 000

29.

Elemental unit of energy

a)

Photon

b)

Quartz

c)

Quantum

d)

Quark

30.

Mass which is accelerated at the rate of 1 ft/a when acted by a force of 1 lb.

a)

Erg

b)

Dyne

c)

Slug

d)

BTU

31.

Size of some bacteria and living cells is in the order of ___

a)

millimeter

b)

nanometer

c)

micrometer

d)

centimeter

32.

Size of largest atoms is in the order of ___

a)

nanometer

b)

centimeter

c)

millimeter

d)

micrometer

33.

Mass of a grain of salt is in the order of ___.

a)

microgram

b)

nanogram

c)

milligram

d)

gram

34.

Joule = ___

a)

Newton-meter

b)

Newton-second

c)

Newton-meter per second squared

d)

Newton-meter per second

35.

Watt = ___.

a)

Newton-meter

b)

Newton-meter per second

c)

Newton-second

d)

Newton-meter per second squared

36.

1 Horsepower = ___ watts

a)

550

b)

33 000

c)

746

d)

250

37.

Killowatt-hour is the unit of ___

a)

power

b)

work

c)

energy

d)

work/energy

38.

Mole is one of the SI unit base. It measures ___.

a)

amount of substance

b)

current

c)

temperature

d)

length

39.

Slug is the english unit of ___

a)

mass

b)

energy

c)

weight

d)

force

40.

Measurement of sound intensity

a)

Beats

b)

Sones

c)

Phons

d)

Decibels

41.

An electron volt is the enwrgy required by an electron that haa been accelerated by a potential difference of how many volts?

a)

1 V

b)

10 V

c)

0.01 V

d)

0.1 V

42.

Vector with a magnitude of one and with no unit.

a)

Dot Vector

b)

Unit vector

c)

Scalar Vector

d)

Single Vector

43.

Purpose of unit vector

a)

To set a standard among vectors

b)

To serve as comparison with other vectors

c)

To indicate magnitude w/o reference to direction

d)

To describe the direction in space

44.

Other term for scalar product of 2 vectors

a)

Dot product

b)

Vector product

c)

Cross product

d)

Plus product

45.

Other term of vector product of 2 vectors

a)

Vector product

b)

Cross product

c)

Dot product

d)

Plus product

46.

The scalar product of 2 perpendicular vectors is always ___.

a)

greater than 1

b)

equal to 1

c)

equal to 0

d)

less than 1

47.

The vector product of two perpendicular vectors is always ___.

a)

greater than 1

b)

equal to zero

c)

less than 1

d)

equal to 1

48.

The vector product of any vector with itself is ___.

a)

greater than 1

b)

equal to 0

c)

equal to 1

d)

less than 1

49.

Physical quantities that are completely specified by just a number and a unit or physical quantities that have magnitudes only.

a)

Dot Product

b)

Scalar Quantities

c)

Vector Quantities

d)

Vector Product

50.

Physical quantities that have magnitude and a direction.

a)

Scalar Quantities

b)

Dot Product

c)

Vector Quantities

d)

Vector Product

51.

Which is not a VECTOR QUANTITY?

a)

Displacement

b)

Acceleration

c)

Time

d)

Velocity

52.

Which is NOT a fundamental physical quantity of mechanics?

a)

Time

b)

Volume

c)

Mass

d)

Length

53.

An arrowed line whose length is proportional to the magnitude of some vector quanyity and whose direction is that of the quantity.

a)

Vector

b)

Vector Diagram

c)

Component

d)

Resultant

54.

Scaled drawing of the various forces, velocities or other vector quantities involved in the motion of a body.

a)

Resultant

b)

Vector Diagram

c)

Vector

d)

Component

55.

The ___ of a moving object is the distance it covers in a time interval divided by the time interval.

a)

Instantaneous Speed

b)

Instantaneous Velocity

c)

Average Speed

d)

Acceleration

56.

Rate at which velocity changes in time

a)

Average Speed

b)

Instantaneous Speed

c)

Instantaneous Velocity

d)

Acceleration

57.

"The work done by the net force on a particle equals tge change in the particles kinetic energy."

a)

Law of Conservation of Work

b)

Total Work Theorem

c)

Law of Conservation of Energy

d)

Work-energy Theorem

58.

The ___ of a particle is equal to the total work that particle can do in the process of being brought to rest.

a)

Mechanical Energy

b)

Kinetic Energy

c)

Potential Energy

d)

Total Energy

59.

Work is the product of:

a)

Force and Time

b)

Force and Displacement

c)

Displacement and Time

d)

Power and Time

60.

Time rate at which work is done.

a)

Impulse

b)

Energy

c)

Momentum

d)

Power

61.

Any influence that can change the velocity of an object.

a)

Work

b)

Energy

c)

Force

d)

Impulse

62.

Measure of Inertia of an object

a)

Mass

b)

Force

c)

Density

d)

Weight

63.

Property of matter which is the reluctance to change its state of rest or uniform motion.

a)

Inertia

b)

Equilibrium

c)

Impulse

d)

Momentum

64.

"If no net force acts on it, an object at rest will remain at rest and an object in motion will remain in motion at constant velocity."

a)

Third Law of Motion

b)

Second Law of Motion

c)

d'Alembert's Principle

d)

First Law of Motion

65.

"The net force acting on an object equals the product of the mass and the acceleration of the object. The direction of the force is the same as that of the acceleration."

a)

d'Alemberts Principle

b)

Third Law of Motion

c)

Second Law of Motion

d)

First Law of Motion

66.

"When an object exerts a force on another object, the second object exerts on the first a force of the same magnitude but in the opposite direction."

a)

Third Law of Motion

b)

d'Alemberts Principle

c)

First Law of Motion

d)

Second Law of Motion

67.

The force with which the earth attracts an object.

a)

All of the Above

b)

Gravitational Pull

c)

Mass

d)

Weight

68.

1 Slug = ___ kg

a)

13.2

b)

12.5

c)

14.6

d)

11.9

69.

An actual force that arises to oppose relative motion between contracting surfaces

a)

Reaction Force

b)

Action Force

c)

Friction

d)

Drag

70.

Force between 2 stationary surfaces in contact with that prevents motion between them.

a)

Kinetic Friction

b)

Starting Friction

c)

Sliding Friction

d)

Static Friction

71.

Max. value of the static friction

a)

Sliding Friction

b)

Starting Friction

c)

Kinetic Friction

d)

Dynamic Friction

72.

Which is true between kinetic friction and static friction?

a)

K.F. is greater than S.F.

b)

K.F. is always equal to S.F

c)

K.F. is equal to or greater than S.F.

d)

K.F. is less than S.F.

73.

Other term of Kinetic Friction

a)

Starting Friction

b)

All of the Above

c)

Sliding Friction

d)

Dynamic Friction

74.

For the same material in contact, what is TRUE between coefficient of static friction and coefficient of kinetic friction.

a)

Coefficient of S.F. maybe greater than or less than the Coefficient of K.F.

b)

Coefficient of S.F. is always greater than the Coefficient of K.F.

c)

Coefficient of S.F. is always less than the Coefficient of K.F.

d)

Coefficient of S.F. is always equal to the Coefficient of K.F.

75.

Efficiency of the machine is the ratio of:

a)

Total work done to total energy

b)

Power input to power output

c)

Power output to power input

d)

Total energy to total power

76.

Energy something possesses by virtue of its motion.

a)

Kinetic Energy

b)

Potential Energy

c)

Rest Energy

d)

Mechanical Energy

77.

Energy something possesses by virtue of its mass.

a)

Potential Energy

b)

Mechanical Energy

c)

Kinetic Energy

d)

Rest Energy

78.

Energy something possesses by virtue of its position.

a)

Potential Energy

b)

Rest Energy

c)

Kinetic Energy

d)

Mechanical Energy

79.

When the vector sum of the external forces acting on the system of particles equals zero, the total linear momentum of the system ___.

a)

maximizes

b)

remains constant

c)

become a zero

d)

changes abruptly

80.

It is conserved in an elastic collision.

a)

Kinetic Energy

b)

Potential Energy

c)

Mechanical Energy

d)

Rest Energy

81.

In elastic condition, Kinetic Energy is conserved.

a)

True

b)

Either true or false, depending on the impact of the colliding bodies

c)

False

d)

Either true or false, depending upon the colliding bodies

82.

When can we say that a collision is completely inelastic condition?

a)

When two colliding objects stick together after impact

b)

When the two colliding objects will separate after impact

c)

When kinetic energy lost is minimum

d)

When kinetic energy is conserved

83.

What will happen to the kinetic energy if it is a completely inelastic condition?

a)

It is conserved.

b)

It is lost to min. value

c)

It is lost to max. value

d)

It is gained from the loss of potential energy

84.

Coefficient of restitution is the ratio of:

a)

relative speed to absolute speed

b)

absolute speed to relative speed

c)

relative speed after collision to relative speed before collision

d)

relative speed befofe collision to relative speed after collision

85.

Coefficient of restitution for a perfectly elastic collision.

a)

<0

b)

>0

c)

1

d)

0

86.

Coefficient of restitution for a perfectly inelastic collision.

a)

<0

b)

>0

c)

1

d)

0

87.

The coefficient of restitution always applies ___.

a)

to neither of the colliding objects

b)

to only one of the colliding objects

c)

jointly to the colliding objects

d)

to the bigger colliding object

88.

"When the vector sum of the external forces acting on a system of particles equals zero, the total linear momentum of the system remains constant."

a)

Law of universal gravitation

b)

Law of conservation of momentum

c)

Law of conservation of impulse

d)

Law of conservation of energy

89.

Product of the force and the time during the force acts.

a)

Energy

b)

Impulse

c)

Momentum

d)

Power

90.

Momentum is the product of

a)

force and mass

b)

force and time

c)

mass and time

d)

velocity and mass

91.

Which of the ff. quantities is/are conserved during all types of collision?

a)

Kinetic Energy

b)

Velocity

c)

Force

d)

Momentum

92.

The force perlendicular to the velocity of an object along a curve path.

a)

Reverse-effective force

b)

Gravitational force

c)

Centrifugal force

d)

Centripetal force

93.

Centripetal force is

a)

Either directed away or toward the center of curvature of the path

b)

Directed away from the center of curvature of the path

c)

Directed toward the center of curvature of the path

d)

Tangent to the curvature of the path

94.

Time needed by an object in uniform circular motion to complete an orbit.

a)

Orbit time

b)

Revolution

c)

Path time

d)

Period

95.

The centripetal acceleration of a particle in uniform motion is ___ to the radius of its path.

a)

directly proportional

b)

inversely proportional

c)

equal

d)

not related in any way

96.

Gravitation occurs between all objects in the universe by virtue of their ___.

a)

mass

b)

volume

c)

density

d)

weight

97.

"Every object in the universe attracts every other object with a force directly proportional to the product of their maases and inversely proportional to the square of the distance separating them."

a)

Law of universal gravitation

b)

Law of conservation of impulse

c)

Law of conservation of momentum

d)

Law of conservation of energy

98.

The gravitational force of the earth on an object varies ___ the distance of the object from the center of the earth.

a)

inversely as

b)

directly as

c)

inversely as the square

d)

directly as the square

99.

A rotating body has kinetic energy.

a)

Always false

b)

Sometimes true

c)

Always true

d)

Sometimes false

100.

Type of energy that is usually transmitted by rotary motion.

a)

Mechanical energy

b)

Rest energy

c)

Kinetic energy

d)

Potential energy

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