This worksheet contains 10 physics questions about concepts such as force, mass, acceleration, momentum, inertia, Newton's second and third laws of motion. The questions cover topics like the relationship between force and acceleration, how Newton's second law can be expressed in terms of momentum, examples of inertia of rest, the force acting on a body in terms of momentum, why a rider falls backwards when a horse starts running suddenly, explanations of inertia of rest and inertia of motion, how walking and running are possible, why hammering a nail hurts your hands, how to show reaction is equal and opposite to action, and why a gun recoils when fired.

1. WORKSHEET – PHYSICS by: Miss Ritima
Q1: What is the relationship between:
a. Force and acceleration
b. Mass and acceleration of body
Q2: Express Newton’s second law of motion in terms of rate of change of momentum in a body.
Q3: Describe the inertia of rest by giving the suitable example.
Q4: Write expression for describing the force acting on a body in terms of momentum.
Q5: Why did rider falls backwards when his horse starts running suddenly?
Q6: Explain (a) inertia of rest (b) Inertia of motion.
Q7: How does walking or running on ground become possible?
Q8: Why do you feel hurt in your hands when you hammer a nail in a wood plank?
Q9: How can you show reaction is always equal and opposite to reaction?
Q10: Why do you feel backward jerk on your shoulder when you fire a gun or why gun recoils When shot is
fired from it?