Physics Quiz: Calculating Work, GPE and KE

Question 1: What is the formula to calculate work done?

• Mass x Acceleration

• Force x Distance

• Velocity x Time

• Energy x Power

Question 2: If a force of 10N is applied to move an object 5m, what is the work done?

• 15J

• 25J

• 50J

• 100J

Question 3: A person lifts a box weighing 50N to a height of 2m. What is the work done?

• 100J

• 25J

• 200J

• 50J

Question 4: How is work related to the displacement and force applied?

• Work is directly related to both displacement and force applied.

• Work is only related to displacement, not force

• Work is not related to displacement or force

• Work is only related to force, not displacement

Question 5: What is the formula to calculate gravitational potential energy?

• mgh + 2

• mgh

• mg/h

• mgh^2

Question 6: If an object has a mass of 20kg and is at a height of 10m, what is its gravitational potential energy?

• 1960 J

• 500 J

• 1000 J

• 3000 J

Question 7: How does the gravitational potential energy change when the height of an object changes?

• Becomes zero when the height changes

• Remains constant regardless of the change in height

• Increases or decreases depending on the change in height

• Increases linearly with the change in height

Question 8: What is the formula to calculate kinetic energy?

• mass + velocity^2

• 1/2 * mass * velocity

• mass * velocity^2

• 1/2 * mass * velocity^2

Question 9: If an object has a mass of 5kg and a velocity of 10m/s, what is its kinetic energy?

• 250 Joules

• 100 Joules

• 50 Joules

• 500 Joules

Question 10: How does the kinetic energy of an object change when its velocity changes?

• Has no effect on kinetic energy

• Increases or decreases depending on the change in velocity

• Becomes negative

• Remains constant