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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is work in a physics context?
💡 Hint: Consider both the direction and the amount of force applied.
Question 2
Easy
Is work done when an object is at rest?
💡 Hint: Think about the equation W = F·d.
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
In physics, work is defined as the:
- Sum of energies
- Product of force and displacement
- Change in kinetic energy
💡 Hint: Think about how work is calculated mathematically.
Question 2
Is work done when a force is applied but there is no movement?
- True
- False
💡 Hint: Recall the definition of work in physics.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A person lifts a 10 kg box to a height of 2 m. Calculate the work done against gravity. (g=9.8 m/s²)
💡 Hint: Use the formula W = F·d where F = m·g.
Question 2
A car traveling at 60 km/h applies brakes and slows to 30 km/h in 5 seconds. If the mass of the car is 1200 kg, calculate the work done by the brakes.
💡 Hint: Calculate momentum and utilize the work-energy principle here.
Challenge and get performance evaluation