Momentum and Collisions Review

What is the Law of Conservation of Momentum?

• Total momentum of a closed system increases with time

• Momentum decreases as external forces act on a closed system

• Momentum is not conserved in a closed system

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

Tags

NGSS.HS-PS2-2

Define impulse and provide an example of its application.

• Impulse is the same as momentum and has no practical application.

• Impulse is the change in momentum of an object when a force is applied over a period of time. For example, when a baseball is hit by a bat, the force applied over a short period of time causes a change in the ball's momentum.

• Impulse is the force applied to an object, not the change in momentum.

• Impulse is only relevant in theoretical physics and has no real-world applications.

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NGSS.HS-PS2-2

Explain the difference between elastic and inelastic collisions.

• In elastic collisions, kinetic energy is not conserved, while in inelastic collisions, kinetic energy is conserved.

• In elastic collisions, momentum is not conserved, while in inelastic collisions, momentum is conserved.

• In elastic collisions, kinetic energy is conserved, while in inelastic collisions, kinetic energy is not conserved and is transformed into other forms of energy such as heat or sound.

• In elastic collisions, the objects stick together after the collision, while in inelastic collisions, the objects bounce off each other.

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NGSS.HS-PS2-2

NGSS.HS-PS2-3

Calculate the momentum of an object with a mass of 5 kg and a velocity of 10 m/s.

• 50 kg m/s

• 25 kg m/s

• 100 kg m/s

• 15 kg m/s

Tags

NGSS.HS-PS2-2

Describe the concept of momentum and its significance in physics.

• Momentum is the result of an object's weight and its acceleration. It is significant in physics because it determines the color of the object.

• Momentum is the product of an object's mass and its velocity. It is significant in physics because it is a conserved quantity in a closed system, and it helps to understand and analyze the motion of objects.

• Momentum is the outcome of an object's density and its force. It is significant in physics because it affects the taste of the object.

• Momentum is the combination of an object's speed and its volume. It is significant in physics because it helps in calculating the temperature of the object.

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

Explain the process and physics behind the egg drop project.

• Students design a contraption to protect an egg from breaking when thrown horizontally.

• The egg drop project involves understanding the concept of catapults and projectile motion.

• The physics behind it includes the study of plant biology and photosynthesis.

• The egg drop project involves understanding the concept of momentum, potential energy, and kinetic energy. Students design a contraption to protect an egg from breaking when dropped from a height. The physics behind it includes the conservation of energy and the transfer of forces during the impact.

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NGSS.HS-PS2-3

In a collision between two objects, if one object experiences a large change in momentum, what can be said about the other object?

• The other object will experience an increase in speed

• The other object will experience a decrease in momentum

• The other object will experience no change in momentum

• The other object will also experience a large change in momentum.

Tags

NGSS.HS-PS2-2

What is the relationship between force, time, and impulse?

• Impulse = Force / Time

• Impulse = Force + Time

• Impulse = Force x Time

• Impulse = Time / Force

Discuss the role of momentum in car safety and the physics behind it.

• Momentum has no impact on car safety

• The physics of momentum is not applicable to car safety

• Momentum is only relevant in sports, not in car safety

• Momentum determines the force of impact during a collision and follows the principle of conservation of momentum.

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

How does the conservation of momentum apply to real-life situations?

• It only applies to objects in space

• It only applies to very small objects

• It helps to understand and predict the motion of objects in real-life scenarios.

• It has no application in real-life situations

Tags

NGSS.HS-PS2-2