Dynamics

Physics ⇒ Mechanics

Dynamics starts at 10 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Dynamics. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 10

A 1.5 kg object is moving at 8 m/s. Calculate its momentum.

A 10 kg object is moving with a velocity of 4 m/s. What is its momentum?

A 2 kg object is dropped from a height. What is the force of gravity acting on it? (Take g = 9.8 m/s²)

A 3 kg object is moving at 6 m/s. What is its kinetic energy?

A 4 kg object is at rest. What is its momentum?

A 5 kg object is acted upon by a net force of 15 N. What is its acceleration?

A 6 kg object accelerates at 2 m/s². What is the net force acting on it?

A box is pushed with a force of 50 N and moves 5 m in the direction of the force. What is the work done?

A car of mass 1000 kg accelerates from rest to 20 m/s in 10 seconds. What is the force applied by the engine?

A force of 10 N is applied to a 2 kg object. What is its acceleration?

A force of 25 N is applied to move a box 2 m across a floor. How much work is done?

Define inertia.

Describe the effect of unbalanced forces on an object.

Explain the difference between mass and weight.

Explain why a ball thrown upwards slows down and eventually falls back to the ground.

If a moving object comes to rest, what can you say about the net force acting on it during this process?

If the mass of an object is doubled, but the force applied remains the same, what happens to the acceleration?

State Newton's First Law of Motion.

State Newton's Second Law of Motion.

A 0.2 kg ball is dropped from a height of 10 m. Ignoring air resistance, calculate the speed of the ball just before it hits the ground. (Take g = 9.8 m/s²)