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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 friction?
💡 Hint: Think about what happens when you slide something.
Question 2
Easy
Name a factor that affects friction.
💡 Hint: Consider how different surfaces interact.
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 opposes motion between two surfaces?
- Gravity
- Friction
- Inertia
💡 Hint: Remember the force that slows objects down.
Question 2
True or False: Rough surfaces have less friction than smooth surfaces.
- True
- False
💡 Hint: Think about surface interactions.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A block with a mass of 10 kg is resting on a surface. If the coefficient of static friction is 0.4, what is the maximum static frictional force?
💡 Hint: Remember to calculate the normal force using weight.
Question 2
If a car has a weight of 1200 N, what is the frictional force if the coefficient of kinetic friction is 0.2?
💡 Hint: Identify the normal force based on the weight of the car.
Challenge and get performance evaluation