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Momentum and Impulse Conceptual Questions

Total questions: 15

Worksheet time: 45mins

Name
Class
Date
1.

What is the formula for calculating impulse?

a)

Impulse = Force + Time

b)

Impulse = Force × Time

c)

Impulse = Force / Time

d)

Impulse = Time / Force

2.

What factors affect the impulse experienced by an object?

a)

The mass of the object and the speed of the object.

b)

The magnitude of the force applied and the duration of time the force is applied.

c)

The temperature of the object and the surface area in contact.

d)

The color of the object and the type of material it is made from.

3.

What is the relationship between impulse and momentum?

a)

Impulse is equal to the change in momentum of an object.

b)

Impulse is the product of mass and velocity.

c)

Momentum is always greater than impulse.

d)

Impulse and momentum are unrelated concepts.

4.

What is the effect of dropping an egg into water versus onto a hard surface?

a)

The egg dropped into water experiences a smaller change in momentum due to the water's ability to reduce the force of impact over time.

b)

The egg dropped onto a hard surface shatters immediately due to the high force of impact.

c)

The egg dropped into water will bounce back up due to the buoyancy of the water.

d)

The egg dropped onto a hard surface will float instead of breaking.

5.

What is impulse?

a)

Impulse is the change in momentum of an object when a force is applied over a period of time, calculated as Impulse = Force × Time.

b)

Impulse is the total energy of an object in motion.

c)

Impulse is the force applied to an object divided by the time it takes to apply that force.

d)

Impulse is the mass of an object multiplied by its velocity.

6.

What happens to momentum in a closed system?

a)

The total momentum increases after an event.

b)

The total momentum decreases after an event.

c)

The total momentum before an event is equal to the total momentum after the event (conservation of momentum).

d)

Momentum is lost in a closed system.

7.

How can impulse be calculated if the force and time are known?

a)

Impulse can be calculated by adding the force applied to the time duration of the force: Impulse = Force + Time.

b)

Impulse can be calculated by dividing the force applied by the time duration of the force: Impulse = Force / Time.

c)

Impulse can be calculated by multiplying the force applied by the time duration of the force: Impulse = Force × Time.

d)

Impulse can be calculated by subtracting the time duration from the force applied: Impulse = Force - Time.

8.

What is momentum?

a)

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv.

b)

Momentum is the force applied to an object over time.

c)

Momentum is the rate of change of an object's position.

d)

Momentum is the energy stored in an object due to its motion.

9.

How does increasing the time of impact affect impulse?

a)

It decreases the impulse, leading to less change in momentum.

b)

It has no effect on impulse or momentum.

c)

It increases the impulse, allowing for a greater change in momentum.

d)

It only affects the speed of the object, not the impulse.

10.

If two objects collide and stick together, what happens to their momentum?

a)

The total momentum before the collision is greater than the total momentum after the collision.

b)

The total momentum before the collision is equal to the total momentum after the collision.

c)

The total momentum before the collision is less than the total momentum after the collision.

d)

Momentum is lost during the collision.

11.

What is the significance of impulse in sports?

a)

Impulse helps athletes understand how to maximize their performance by controlling the force and time of their actions.

b)

Impulse is only important for weightlifting and not for other sports.

c)

Impulse has no effect on an athlete's performance.

d)

Impulse is a term used to describe the speed of an athlete's movements.

12.

What is the unit of momentum?

a)

kilogram meter per second (kg·m/s)

b)

newton (N)

c)

joule (J)

d)

pascal (Pa)

13.

What is the unit of impulse?

a)

Newton meter (N·m)

b)

Newton second (N·s)

c)

Kilogram (kg)

d)

Joule (J)

14.

What is the formula for momentum?

a)

Momentum (p) = Mass (m) × Velocity (v)

b)

Momentum (p) = Mass (m) + Velocity (v)

c)

Momentum (p) = Mass (m) / Velocity (v)

d)

Momentum (p) = Mass (m) - Velocity (v)

15.

What happens to the momentum of an object if no external forces act on it?

a)

The momentum increases over time.

b)

The momentum decreases over time.

c)

The momentum remains constant.

d)

The momentum becomes zero.