Practice - Summary of Key Equations and Concepts - 5.7
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Practice Questions
Test your understanding with targeted questions
What is the average velocity of an object that travels 40 m in 8 seconds?
💡 Hint: Use the formula v̅ = Δx / Δt.
If a car moves from 2 m to 5 m, what is its displacement?
💡 Hint: Apply the displacement formula Δx = x_f - x_i.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does the equation v = u + at represent?
💡 Hint: Think about what variables are included in the equation.
True or False? The total momentum is conserved in all collisions.
💡 Hint: Consider examples of elastic and inelastic collisions.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A ball is thrown straight up with an initial velocity of 20 m/s. Calculate the time it takes to reach its maximum height. Then, how high does it go?
💡 Hint: Remember to consider acceleration due to gravity.
A 2 kg object is moving with a velocity of 15 m/s. What is its momentum? If it collides with a wall and comes to rest, how much force did it exert on the wall in 0.5 seconds?
💡 Hint: Look at the definition of momentum and think about how force and time relate.
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