Newton's Laws of Motion

Multiple Choice

Which of the following best describes the impact of Newton's Laws of Motion on our understanding of the universe?

• They explain why objects move and how planets and moons travel in space.

• They describe the color of planets and moons.

• They only apply to objects on Earth.

• They are no longer used today.

Multiple Select

Based on the explanation of the First Law of Motion, which of the following statements are correct? (multiple answers)

• Objects at rest tend to stay at rest unless acted upon by an outside force.

• Objects in motion tend to stay in motion unless acted upon by an outside force.

• Objects in motion will always change direction without any force.

• Objects at rest will always start moving on their own.

Open Ended

Explain how the First Law of Motion relates to the use of seat belts in cars.

Open Ended

What is the Second Law of Motion?

Multiple Choice

Which of the following best represents the mathematical expression of Newton's Second Law of Motion?

• F = m x a

• F = m + a

• F = m / a

• F = a / m

Multiple Select

Based on the example of hitting a baseball, which factors affect the acceleration of the ball according to the Second Law of Motion?

• Force applied to the ball

• Mass of the ball

• Shape of the bat

• Color of the ball

Open Ended

Explain how the Third Law of Motion applies to the movement of a rocket.

Multiple Choice

When you walk, the Earth applies a reaction force to your foot. Why does the Earth not move in response?

• The Earth's mass is much larger than your mass

• The reaction force is too small

• The Earth's gravity prevents movement

• Your force is not directed at the Earth

Multiple Choice

Which of the following best describes acceleration?

• The rate of change of velocity (speed with a direction).

• A push or pull that causes an object to change its motion or shape.

• The amount of matter in an object.

• The resistance of an object to change its state of motion.