Question

1. in which direction do you apply force to either the red ball or the ping pong ball to change its direction?

○ in the same direction it is going

○ in the opposite direction it is going

○ from the side

1. which of newton’s laws is also know as the law of inertia?

○ newton’s first law of motion

○ newton’s second law of motion

○ newton’s third law of motion

○ law of conservation of energy

Explanation:

Question 7

To change the direction of a moving object (like a ball), applying force from the side (perpendicular to its current motion direction) causes it to turn. Applying force in the same direction accelerates it, and in the opposite direction decelerates or stops it, not change direction.

Newton’s first law of motion states that an object at rest stays at rest, and an object in motion stays in motion with the same velocity unless acted upon by a net external force. This property of resisting motion change is inertia, so it's called the Law of Inertia. The second law is about force, mass, and acceleration ($F = ma$), the third is action - reaction, and the law of conservation of energy is not a Newton's law.

Answer:

C. From the side

Question 8