Physics Quiz

Collisions: In an elastic collision between two objects, what happens to the total kinetic energy of the system?

• It decreases

• It increases

• It remains constant

• It is unpredictable

Impulse-Momentum Theorem: If the impulse acting on an object is zero, what can be said about its change in momentum?

• It is zero

• It is infinite

• It is negative

• It is unpredictable

Collisions: In an inelastic collision, what happens to the kinetic energy of the system?

• It decreases

• It increases

• It remains constant

• It is unpredictable

Conservation of Momentum: What does the law of conservation of momentum state?

• Momentum is always increasing

• Total momentum of a system remains constant if no external forces act on it

• Momentum is inversely proportional to velocity

• Momentum can be created or destroyed

Force-Time Graphs: A steep slope on a force-time graph indicates:

• High acceleration

• Low acceleration

• Constant velocity

• Zero velocity

Impulse-Momentum Theorem: According to the impulse-momentum theorem, what is the relationship between impulse and change in momentum?

• Impulse is the cause, and change in momentum is the effect

• Impulse is equal to the change in momentum

• Impulse is unrelated to momentum

• Change in momentum is independent of impulse

Collisions: What type of collision results in maximum deformation of objects?

• Elastic collision

• Inelastic collision

• Perfectly elastic collision

• Perfectly inelastic collision

Impulse-Momentum Theorem: If the mass of an object is doubled, how does its momentum change, assuming the velocity remains constant?

• Doubles

• Halves

• Quadruples

• Remains the same

Impulse-Momentum Theorem: A force of 20 N is applied to an object for a duration of 5 seconds. If the mass of the object is 4 kg, calculate the change in momentum.

• 20 kg m/s

• 40 kg m/s

• 80 kg m/s

• 100 kg m/s

Conservation of Momentum: If no external forces act on a system, what can be said about the total momentum of the system?

• It increases

• It decreases

• It remains constant

• It is unpredictable