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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the net force acting on a cork of mass 10 g floating on water?
💡 Hint: Think about the forces of buoyancy and gravity.
Question 2
Easy
What happens to the force acting on a stone dropped from a train moving at constant speed?
💡 Hint: Consider the reference frame of the stone.
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 demonstrates Newton's first law?
- An object remains at rest
- A ball rolling on a surface
- Both of the above
💡 Hint: Think about the effects of unbalanced forces.
Question 2
True or False: Frictional force only acts when an object is in motion.
- True
- False
💡 Hint: Consider static friction.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A block of mass 10 kg is resting on a horizontal surface with a coefficient of static friction of 0.5. What mass can be added without causing it to slide?
💡 Hint: Use the concept of forces acting downward and friction.
Question 2
If a car travels at 20 m/s in a straight line and suddenly hits a wall, how would you calculate the force on the car if it took 0.5 seconds to stop?
💡 Hint: Impulse relates to the change in momentum during the collision.
Challenge and get performance evaluation