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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define work in a physics context.
π‘ Hint: Think about force and movement.
Question 2
Easy
What is the SI unit of energy?
π‘ Hint: Think about the same unit used for work.
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 calculating work?
- W = F Γ d
- W = F Γ d Γ cos ΞΈ
- W = F + d
π‘ Hint: Remember to consider the direction of force.
Question 2
Is energy conserved in an isolated system?
- True
- False
π‘ Hint: Think about energy transformations.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the speed of a car if it has 240,000 joules of kinetic energy and its mass is 800 kg.
π‘ Hint: Rearrange the kinetic energy formula to find velocity.
Question 2
If a 10 kg object is lifted 3 meters, how much work is done against gravity?
π‘ Hint: Use the work done against gravitational force.
Challenge and get performance evaluation