Newton's Second Law Experiments

The video tutorial explains Newton's second law of motion, which states that the rate of change of momentum is directly proportional to the force applied and occurs in the direction of the force. The law is mathematically expressed as F = ma, where F is force, m is mass, and a is acceleration. The tutorial includes an experiment to verify the law by demonstrating that force is proportional to acceleration and mass. The experiment involves a trolley, weights, and a pulley system, with observations recorded to confirm the law's validity.

What does Newton's Second Law of Motion state about the relationship between force and momentum?

• Force and momentum are unrelated.

• Momentum is constant regardless of force.

• The rate of change of momentum is directly proportional to the force applied.

• Force is inversely proportional to momentum.

When the mass of a body is constant, how can Newton's Second Law be expressed?

• F is proportional to a

• F is proportional to m

• F is proportional to 1/m

• F is proportional to 1/a

Which of the following is NOT a material required for the experiment to verify Newton's Second Law?

• Frictionless pulley

• Trolley with smooth wheels

• Spring scale

• Stop clock

What is the initial step in setting up the experiment to verify force proportional to acceleration?

• Attach a pan to the end of the wire.

• Record the time taken to cover the distance.

• Place the trolley on a table 1 meter from the edge.

• Increase the weight in the pan.

How is acceleration calculated in the experiment to verify force proportional to acceleration?

• a = T^2 / 2s

• a = 2s / T^2

• a = s^2 / T

• a = s / T

What observation confirms that force is proportional to acceleration in the experiment?

• The distance covered is constant.

• The time taken is always the same.

• The trolley moves faster with less weight.

• The ratio of F to a is constant.

In the experiment to verify force proportional to mass, what is done after placing weights in the trolley?

• Record the initial velocity.

• Remove a 10 gram weight from the trolley.

• Increase the weight in the pan.

• Attach a heavier pan.

What is the result of the experiment when verifying force proportional to mass?

• The product of mass and acceleration is a constant.

• The product of mass and acceleration is variable.

• Mass and acceleration are unrelated.

• Mass and acceleration are inversely proportional.

What happens to the trolley when sufficient weights are placed in the pan during the experiment?

• The trolley moves in a circular path.

• The trolley remains stationary.

• The trolley moves backward.

• The trolley just begins to move.

What is the purpose of using a frictionless pulley in the experiment?

• To hold the weights in place.

• To measure the velocity.

• To reduce the effect of friction.

• To increase the force applied.