Please make flashcards of the topic 6 in Physics IGSCE curriculam

Question 1

What is the formula for calculating work done?

Answer 1

Work done = Force x Distance x cos(θ)

Question 2

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

Answer 2

True

Question 3

Fill in the blank: The unit of power is ______.

Answer 3

Watt

Question 4

What is the relationship between kinetic energy and mass?

Answer 4

Kinetic energy = 0.5 x mass x velocity^2

Question 5

Multiple Choice: Which of the following is a form of energy? A) Heat B) Light C) Sound D) All of the above

Answer 5

D) All of the above

Question 6

What does the law of conservation of energy state?

Answer 6

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

Question 7

True or False: Potential energy is energy stored due to an object’s position.

Answer 7

True

Question 8

Fill in the blank: The gravitational potential energy is given by the formula ______.

Answer 8

Potential Energy = mass x gravitational field strength x height

Question 9

What is the SI unit of energy?

Answer 9

Joule

Question 10

Multiple Choice: Which type of energy is associated with the motion of an object? A) Potential B) Kinetic C) Thermal D) Nuclear

Answer 10

B) Kinetic

Question 11

What is the formula for calculating the efficiency of a machine?

Answer 11

Efficiency = (Useful output energy / Total input energy) x 100%

Question 12

True or False: A machine can create energy.

Answer 12

False

Question 13

Fill in the blank: The energy stored in a compressed spring is called ______ energy.

Answer 13

Elastic

Question 14

What is the principle of moments?

Answer 14

For an object in equilibrium, the sum of clockwise moments about a pivot equals the sum of anticlockwise moments.

Question 15

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

Answer 15

C) Thermal

Question 16

What is the formula for gravitational potential energy near the Earth’s surface?

Answer 16

Potential Energy = mass x 9.81 m/s² x height

Question 17

True or False: Work done can be negative.

Answer 17

True

Question 18

Fill in the blank: The total mechanical energy of an object is the sum of its ______ and ______ energy.

Answer 18

kinetic; potential

Question 19

What type of energy is associated with temperature?

Answer 19

Thermal energy

Question 20

Multiple Choice: Which of the following is an example of energy transformation? A) A battery powering a flashlight B) A rock falling from a height C) A pendulum swinging D) All of the above

Answer 20

D) All of the above