7.23 Physical science assessment

Which of Newton’s Laws is best described by "For every action, there is an equal and opposite reaction."

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• Newton's 4th Law

Which of Newton’s Laws is best described by Force = Mass x Acceleration

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• Newton's 4th Law

Which of Newton’s Laws is best described by the following scenario. An automobile you are riding in suddenly stops, but you continue to go forward.

• Newton's 1st Law of Motion

• Newton's 2nd Law of Motion

The tendency of an object to resist changes in its motion is called ________.

• inertia

• force

• acceleration

• velocity

Which of Newton’s Laws is best described by the following statement. You push against a wall and the wall is pushing back on you.

• Newton's 1st Law of Motion

• Newton's 2nd Law of Motion

• Newton's 3rd Law of Motion

• Newton's 4th Law of Motion

What is the acceleration of a 50 kg object pushed with a force of 500 newtons?

• 100 m/s²

• 25,000 m/s²

• 10 m/s²

• 25 m/s²

A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec². What is its force?

• 50 Newtons

• 20 Newtons

• 9.5 Newtons

• 5 Newtons

Which of Newton's laws are illustrated with a rocket launch?

• 1st Law, the Law of Inertia.

• 2nd Law, the Law of Acceleration.

• 3rd Law, the Law of Action Reaction

• The Law of Conservation of Mass

Which of Newton’s Laws is best described by the following statement. The harder you hit a baseball, the faster it accelerates.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• Law of Momentum

What is the force necessary to accelerate a 1785 kg car at a rate of 50 m/s²?

• 89,250 N

• 35.7 N

• 98.8 N