PhysicsYear 10en

⚡ Forces and Newton's Laws

This quiz explores Newton's three laws of motion and their real-world applications. **What you'll learn:** - State Newton's first, second and third laws of motion - Identify balanced and unbalanced forces in everyday situations - Calculate force, mass and acceleration using $F = ma$ - Explain why objects accelerate, remain stationary or move at constant velocity - Recognize action and reaction force pairs

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Question 1
Which of the following best describes Newton's first law of motion?
Question 2
A book resting on a table experiences a net force of zero because the weight force and normal force are balanced.
Question 3
A car of mass 1500 kg accelerates from rest. What is the net force required to give it an acceleration of $2 \text{ m/s}^2$ ?
Question 4
A person pushes on a wall with a force of 100 N. According to Newton's third law, what force does the wall exert on the person?
Question 5
Newton's second law can be written as the equation $F = ___$ , where $F$ is force in newtons, $m$ is mass in kilograms, and $a$ is acceleration in $\text{m/s}^2$ .
Question 6
A bicycle is rolling forward on a flat road at constant velocity. Which statement is true about the forces acting on it?
Question 7
Two objects collide and stick together. Before collision, object A (mass 2 kg) moves at $5 \text{ m/s}$ and object B (mass 3 kg) is at rest. Which statement about the collision best reflects Newton's third law?
Question 8
If the net force on an object doubles while its mass stays the same, the acceleration will double.
Question 9
A skydiver falls at terminal velocity (constant speed). What can you conclude about the forces on the skydiver?
Question 10
A student pushes a box across the floor with a horizontal force of 50 N. The box experiences friction of 30 N. If the box has a mass of 5 kg, what is its acceleration?