Physics For The GAMSAT Section 3

Question 1

What is the unit of force in the International System of Units (SI)?

Answer 1

Newton

Question 2

True or False: Energy can be created or destroyed.

Answer 2

False

Question 3

Fill in the blank: The formula for calculating kinetic energy is _____ = 1/2 mv².

Answer 3

KE

Question 4

What is the law that states that an object in motion stays in motion unless acted upon by an external force?

Answer 4

Newton’s First Law of Motion

Question 5

What is the gravitational acceleration on Earth?

Answer 5

9.81 m/s²

Question 6

Which of the following quantities is a scalar: mass, velocity, or force?

Answer 6

Mass

Question 7

True or False: The total mechanical energy of a system is conserved in the absence of non-conservative forces.

Answer 7

True

Question 8

What is the principle of conservation of momentum?

Answer 8

The total momentum of a closed system remains constant if no external forces act on it.

Question 9

What is the formula for calculating the gravitational potential energy?

Answer 9

PE = mgh

Question 10

In which type of collision is kinetic energy conserved?

Answer 10

Elastic collision

Question 11

What is the term for the rate of change of velocity?

Answer 11

Acceleration

Question 12

Fill in the blank: The unit of power is _____ in the SI system.

Answer 12

Watt

Question 13

What does the symbol ‘c’ represent in physics?

Answer 13

Speed of light in a vacuum

Question 14

True or False: An object moving in a circular path has a constant velocity.

Answer 14

False

Question 15

What is the formula for Ohm’s Law?

Answer 15

V = IR

Question 16

What is the term for the tendency of an object to resist changes in its state of motion?

Answer 16

Inertia

Question 17

Fill in the blank: The energy stored in a compressed spring is an example of _____ energy.

Answer 17

Potential

Question 18

What is the relationship between frequency and period?

Answer 18

Frequency is the reciprocal of the period (f = 1/T).

Question 19

Which law states that the pressure of a gas is inversely proportional to its volume at a constant temperature?

Answer 19

Boyle’s Law

Question 20

What is the term for the amount of matter in an object?

Answer 20

Mass

Question 21

True or False: Temperature is a measure of the average kinetic energy of the particles in a substance.

Answer 21

True

Question 22

What is the formula for calculating work done?

Answer 22

W = Fd cos(θ)

Question 23

Fill in the blank: The three forms of heat transfer are conduction, convection, and _____

Answer 23

Radiation

Question 24

What is the phenomenon where light bends as it passes from one medium to another?

Answer 24

Refraction

Question 25

What is the unit of electric charge?

Answer 25

Coulomb

Question 26

True or False: The frequency of a wave is directly related to its wavelength.

Answer 26

False

Question 27

What is the principle that states that the buoyant force on an object is equal to the weight of the fluid displaced by the object?

Answer 27

Archimedes' Principle

Question 28

Fill in the blank: The total energy of a photon is given by _____ = hf.

Answer 28

E

Question 29

What is the term for the force that opposes the motion of an object through a fluid?

Answer 29

Drag

Question 30

What is the formula for the ideal gas law?

Answer 30

PV = nRT

Question 31

True or False: The center of mass of a system is the point where the mass is evenly distributed.

Answer 31

True

Question 32

What is the term for the process by which a substance changes from a gas to a liquid?

Answer 32

Condensation

Question 33

What is the speed of sound in air at room temperature?

Answer 33

Approximately 343 m/s

Question 34

Fill in the blank: The force of gravity between two objects is described by _____'s Law.

Answer 34

Newton

Question 35

What is the term for the energy associated with the motion of an object?

Answer 35

Kinetic energy

Question 36

True or False: Electromagnetic waves require a medium to travel through.

Answer 36

False

Question 37

What is the term for the angle between the incident ray and the normal line?

Answer 37

Angle of incidence

Question 38

What is the principle that describes the relationship between the pressure and temperature of a gas at constant volume?

Answer 38

Gay-Lussac's Law

Question 39

What is the term for the energy required to change a substance from a solid to a liquid?

Answer 39

Heat of fusion

Question 40

Fill in the blank: The force per unit area exerted by a fluid is called _____ pressure.

Answer 40

Fluid

Question 41

What is the term for the distance between successive crests of a wave?

Answer 41

Wavelength

Question 42

What is the formula for calculating the momentum of an object?

Answer 42

p = mv

Question 43

True or False: The electric field direction is defined as the direction a positive charge would move.

Answer 43

True