Foundations Of Physics

Question 1

What is the SI unit of force?

Answer 1

Newton (N)

Question 2

True or False: Energy is a scalar quantity.

Answer 2

True

Question 3

Fill in the blank: The formula for calculating work done is _____ = force × distance.

Answer 3

work

Question 4

What is the principle of conservation of energy?

Answer 4

Energy cannot be created or destroyed, only transformed from one form to another.

Question 5

Multiple Choice: Which of the following is not a form of energy? A) Kinetic B) Thermal C) Mass D) Potential

Answer 5

C) Mass

Question 6

Define momentum.

Answer 6

Momentum is the product of an object’s mass and its velocity.

Question 7

What is the formula for calculating gravitational potential energy?

Answer 7

Potential Energy = mass × gravitational field strength × height

Question 8

True or False: The law of universal gravitation states that every particle attracts every other particle.

Answer 8

True

Question 9

What is the equation for Hooke’s Law?

Answer 9

F = kx, where F is the force, k is the spring constant, and x is the extension.

Question 10

Fill in the blank: The unit of power is _____

Answer 10

Watt (W)

Question 11

Multiple Choice: Which type of energy is stored in an object due to its position? A) Kinetic B) Thermal C) Potential D) Electrical

Answer 11

C) Potential

Question 12

What is the relationship between frequency and period?

Answer 12

Frequency is the reciprocal of the period.

Question 13

True or False: In a vacuum, all objects fall at the same rate regardless of mass.

Answer 13

True

Question 14

What does the symbol ‘g’ represent in physics?

Answer 14

The acceleration due to gravity, approximately 9.81 m/s² on the surface of the Earth.

Question 15

Define kinetic energy.

Answer 15

Kinetic energy is the energy an object possesses due to its motion.

Question 16

What is the formula for kinetic energy?

Answer 16

Kinetic Energy = 1/2 mv², where m is mass and v is velocity.

Question 17

Multiple Choice: Which of the following factors does not affect the gravitational force between two objects? A) Distance B) Mass C) Temperature D) Gravitational Constant

Answer 17

C) Temperature

Question 18

Fill in the blank: The total energy in a closed system remains _____ over time.

Answer 18

constant

Question 19

What is the definition of work in physics?

Answer 19

Work is done when a force causes an object to move in the direction of the force.

Question 20

True or False: Power is the rate at which work is done.

Answer 20

True