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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define work in physics.
💡 Hint: Consider force and distance for calculating work.
Question 2
Easy
What is the unit of energy?
💡 Hint: Think about the same units 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 definition of work in physics?
- The force applied to an object only
- The force times the distance moved in the direction of the force
- The mass times acceleration
💡 Hint: Think about the formula W = F * d.
Question 2
Is momentum always conserved in a collision?
- True
- False
💡 Hint: Consider the principle of conservation of momentum.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 1000 kg car moving at 20 m/s collides elastically with a stationary 1000 kg car. Calculate their final velocities after the collision.
💡 Hint: Use conservation of momentum and kinetic energy formulas.
Question 2
A force of 10 N pushes a box across a floor for 5 meters, then suddenly stops while the box continues to slide for another 2 meters due to inertia. Calculate total work done on the box during its slide.
💡 Hint: Consider work done only against friction during the distance you apply force.
Challenge and get performance evaluation