Practice Newton’s First Law: Inertia (2.2) - Forces & Motion - IB 8 Physics
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Newton’s First Law: Inertia

Practice - Newton’s First Law: Inertia

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is inertia?

💡 Hint: Think about what happens when you stop suddenly in a vehicle.

Question 2 Easy

If a car is moving at a constant speed, what can we say about the net force acting on it?

💡 Hint: Consider Newton's First Law.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does Newton's First Law state?

A body at rest will stay at rest until acted upon by a force.
A body in motion will stay in motion at constant speed unless a force acts.
Both A and B.

💡 Hint: Consider both scenarios of an object's motion.

Question 2

True or False: An object's inertia depends on its mass.

True
False

💡 Hint: How does mass relate to resistance to force?

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A cyclist riding at 15 m/s suddenly applies brakes producing a net force of -600 N. If the mass of the cyclist and bike is 75 kg, calculate the time taken to come to a stop.

💡 Hint: Use the acceleration and initial speed to find the stopping time.

Challenge 2 Hard

If a 450 kg car is moving with constant velocity and experiences a 900 N force braking it, determine its acceleration. Then, find stopping distance from 30 m/s to 0.

💡 Hint: Solve for acceleration first and then apply kinematics for distance.

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Reference links

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