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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define work in the context of physics.
π‘ Hint: Consider the formula involving force and distance.
Question 2
Easy
What is the unit of energy?
π‘ Hint: Think of the energy involved in lifting a weight.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the formula for work done?
- W = F Γ d
- W = F Γ d Γ cos(ΞΈ)
- W = F Γ d / t
π‘ Hint: Consider the trigonometric implications.
Question 2
True or False: Power is defined as the rate of work done.
- True
- False
π‘ Hint: Think about how fast energy is transferred.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A block of mass 3 kg slides down a frictionless incline of height 5 m. Calculate its speed at the bottom of the ramp.
π‘ Hint: Set potential energy equal to kinetic energy and isolate the velocity.
Question 2
A car does 2000 J of work in accelerating from 0 to 25 m/s. What is its mass?
π‘ Hint: Rearranging the kinetic energy formula will give you mass.
Challenge and get performance evaluation