Momentum and Impulse Conceptual Questions

What is the formula for calculating impulse?

• Impulse = Force + Time

• Impulse = Force × Time

• Impulse = Force / Time

• Impulse = Time / Force

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What factors affect the impulse experienced by an object?

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

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

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

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

What is the relationship between impulse and momentum?

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

• Impulse is the product of mass and velocity.

• Momentum is always greater than impulse.

• Impulse and momentum are unrelated concepts.

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NGSS.HS-PS2-2

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

• 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.

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

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

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

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What is impulse?

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

• Impulse is the total energy of an object in motion.

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

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

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What happens to momentum in a closed system?

• The total momentum increases after an event.

• The total momentum decreases after an event.

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

• Momentum is lost in a closed system.

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

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

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

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

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

What is momentum?

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

• Momentum is the force applied to an object over time.

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

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

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How does increasing the time of impact affect impulse?

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

• It has no effect on impulse or momentum.

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

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

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

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

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

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

• Momentum is lost during the collision.

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