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😭🥹
2 answers
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