Question 1: Which of the following is Newton's First Law of Motion?

Answer: An object at rest stays at rest and an object in motion stays in motion unless acted upon by an external force.

Question 2: True or False: Newton's Second Law states that force equals mass times acceleration.

Answer: True

Question 3: What is the unit of force in the International System of Units?

Answer: Newton

Question 4: Match the following terms to their definitions:

Answer: See full answer key

Question 5: If a car accelerates from rest to 60 m/s in 10 seconds, what is its acceleration? (Use the formula: acceleration = change in velocity / time)

Answer: 6 m/s²

Question 6: Explain the third law of motion with an example.

Answer: Newton's Third Law states that for every action, there is an equal and opposite reaction. For example, when you push against a wall, the wall pushes back with equal force in the opposite direction.

Question 7: Order the following steps involved in the scientific method:

Answer: See full answer key

Question 8: Fill in the blank: According to Newton's first law, an object in motion will not change its velocity unless acted upon by an _________ force.

Answer: external

Question 9: A 5kg object is subjected to a force of 20N. What is the acceleration of the object? (Use the formula: F = ma)

Answer: 4 m/s²

Question 10: Discuss how Newton's laws are applied when riding a bicycle.

Answer: Newton's laws apply to cycling in various ways. The first law is observed in maintaining speed unless brakes are applied. The second law is seen when pedaling to increase speed, as more force results in greater acceleration. The third law is evident when the tires push against the ground and the ground pushes back, propelling the bicycle forward.

Question 11: True or False: An object with a larger mass will always have a larger acceleration than an object with a smaller mass.

Answer: False

Question 12: Describe Newton's Law of Universal Gravitation.

Answer: Every particle attracts every other particle with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.