Identifying Newton's Laws

A soccer ball is sitting in the middle of a field. The ball will remain at rest until an outside force like a players foot or the wind acts upon it. Which of Newton's laws is represented by this?

• 1st

• 2nd

• 3rd

When you are running. your foot exerts force on the ground and the ground exerts force back onto you. Which of Newton's laws is represented

• 1st

• 2nd

• 3rd

Tags

NGSS.MS-PS2-1

The reason a ball bounces up when it hits the ground:

• The ball and ground repel each other.

• The ball exerts a force on the ground, and the ground exerts a force on the ball.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Observe what happens to the motion of the penny. Which of Newton's Laws does this represent?

• Newton's 1st Law, inertia

• Newton's 2nd Law, Force = m x a

• Newton's 3rd Law, action/reaction

Answer explanation

Newton's 1st Law of inertia causes the penny to stay in place/drop straight down and enables me to catch it right where my elbow used to be.

An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• Newton's 4th Law

An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• Newton's 4th Law

If you push a shopping cart with a certain force and it accelerates at 2 m/s², what would be the cart's acceleration if you push it with double the force, assuming the mass remains constant?

• 1 m/s²

• 2 m/s²

• 4 m/s²

• 8 m/s²

Tags

DOK Level 2: Skill/Concept

Watch as Blake pushes the 2 cars of different masses with about the same force. Observe what happens. Which of Newton's Laws does this represent?

• Newton's 1st Law, inertia

• Newton's 2nd Law, Force = m x a

• Newton's 3rd Law, action/reaction

Answer explanation

Newton's 2nd Law is the relationship between force, mass and acceleration. The car with less mass travels further when pushed with the same force as the car with more mass.

Tags

NGSS.MS-PS2-2

Watch as I send the car down the track. What happens as I increase the force that I am using? Which of Newton's Laws does this represent?

• Newton's 1st Law, inertia

• Newton's 2nd Law, Force = m x a

• Newton's 3rd Law, action/reaction

Answer explanation

The more force I apply, the greater the acceleration.

Tags

NGSS.MS-PS2-2

Watch as Blake begins to run. What happens to the sheets of paper under his feet? Why? Which of Newton's Laws does this represent?

• Newton's 1st Law, inertia

• Newton's 2nd Law, Force = m x a

• Newton's 3rd Law, action/reaction

Answer explanation

The action is Blake pushing off into the ground/paper to run. The reaction is the papper accelerating out the opposite direction!