Practice Contact Forces (2.2.1) - Motion and Forces - IB Board Grade 9 Physics
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Contact Forces

Practice - Contact Forces

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is normal force?

💡 Hint: Think about how surfaces support objects.

Question 2 Easy

Give an example of friction force.

💡 Hint: Consider how things stop or slow down.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What type of force opposes the motion of touching surfaces?

Gravity
Normal Force
Friction

💡 Hint: Think about what slows down sliding objects.

Question 2

True or False: Tension force can only act in one direction.

True
False

💡 Hint: Consider how tension can be directed.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A box weighing 30 N is placed on a surface with a coefficient of static friction of 0.5. Calculate the maximum static friction force.

💡 Hint: Remember the formula for static friction.

Challenge 2 Hard

A tension force of 50 N is needed to lift a 20 N object upwards. What is the net force acting on the object?

💡 Hint: Think about balancing forces while lifting.

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Reference links

Supplementary resources to enhance your learning experience.