1. Which of Newton’s laws of motion states that an object at rest stays at rest and an object in motion stays in motion with the same speed and the same direction unless acted upon by an unbalanced force? (1 point)

Newton’s fourth law of motion
Newton’s second law of motion
Newton’s third law of motion
Newton’s first law of motion

2. Which is always true in a closed system? (1 point)

Mass is not conserved.
Momentum is conserved.
Velocity is constant.
Acceleration is not constant.

3. Which is a term meaning the resistance that objects have to change in velocity? (1 point)

acceleration
inertia
external force
momentum

4. Which phrase best defines momentum? (1 point)

the motion of an object
the distance traveled by an object over time
the change in velocity of an object over time
the amount of matter in an object

5. Which is an example of an object with a momentum of zero? (1 point)

a puck sliding across the top of an air hockey table
a swimmer diving off the starting block
an empty canoe sitting unmoving on the bank of a river
a car rolling down a hill

Help me😭🥹

Nevermind, I found the answers see below. :)

Conservation of Momentum Quick Check

1. A. Newton’s first law of motion

2. B. Momentum is conserved.

3. B. inertia

4. B. the motion of an object

5. C. an empty canoe sitting unmoving on the bank of a river

5/5 100%

1. The law that states that an object at rest stays at rest and an object in motion stays in motion with the same speed and the same direction unless acted upon by an unbalanced force is Newton's first law of motion.

2. In a closed system, momentum is conserved. Therefore, the correct answer is "Momentum is conserved."

3. The term that means the resistance that objects have to change in velocity is inertia.

4. Momentum can be defined as the product of an object's mass and velocity. Therefore, the correct answer is "the amount of matter in an object."

5. An example of an object with a momentum of zero is an empty canoe sitting unmoving on the bank of a river.

1. The correct answer is Newton's first law of motion. This law is also known as the law of inertia, and it states that an object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction unless acted upon by an unbalanced force.

To remember this law, you can think of it in terms of everyday experiences. For example, if you push a tablecloth off a table, the dishes on the tablecloth tend to stay in place until the tablecloth is completely removed. This is because the dishes have inertia, which resists changes in motion.

2. The correct answer is momentum is conserved. In a closed system, the total momentum before an event or interaction is equal to the total momentum after the event or interaction, assuming no external forces are acting. This is known as the law of conservation of momentum.

To understand conservation of momentum, consider a collision between two objects. If one object gains momentum, the other object must lose an equal amount of momentum, resulting in a conserved total momentum for the system. This principle applies to both elastic and inelastic collisions.

3. The correct answer is inertia. Inertia is the term used to describe an object's resistance to changes in its velocity. It is directly related to an object's mass. The greater the mass, the greater the inertia, and thus the more force required to change its motion.

To understand inertia, think about pushing a heavy object, like a car. It requires more force to get the car moving compared to pushing a lighter object, like a bicycle. This is because the car has more inertia due to its greater mass.

4. The correct answer is the amount of matter in an object. Momentum is defined as the product of an object's mass and velocity. It is a quantity that measures an object's motion and takes into account both its mass and its speed.

Mathematically, momentum (p) can be represented as p = m * v, where m is the mass of the object and v is its velocity. A larger mass or higher velocity will result in a greater momentum.

5. The correct answer is an empty canoe sitting unmoving on the bank of a river. An object with a momentum of zero means that either its mass or its velocity is zero. In this case, since the canoe is not moving, its velocity is zero, resulting in a momentum of zero.

Remember that momentum is a vector quantity, meaning it has both magnitude and direction. Therefore, an object moving in the opposite direction with the same momentum as another object moving in a different direction would also have a momentum of zero.

I hope this helps! Let me know if you have any more questions.