What does Newton's First Law of Motion state about an object at rest?

• It will change direction.

• It will remain at rest unless acted upon by a force.

• It will start moving on its own.

• It will increase in speed.

In the demonstration of Newton's First Law, what caused the pinboard to fall?

• The unbalanced force of the car.

• The force of gravity.

• The wind.

• The round globe.

Tags

NGSS.MS-PS2-2

According to Newton's Second Law of Motion, what determines the size of an object's acceleration?

• The object's shape.

• The object's temperature.

• The object's color.

• The object's mass and the size of the force acting on it.

Tags

NGSS.MS-PS2-2

In the demonstration of Newton's Second Law, why did the toys travel quickly?

• Because of the wind.

• Because of the car's speed.

• Because of the rocket's great force.

• Because of the round globe.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

How is force mathematically related to mass and acceleration?

• Force is the ratio of mass to acceleration.

• Force is the sum of mass and acceleration.

• Force is the difference between mass and acceleration.

• Force is the product of mass and acceleration.

What is the formula for calculating mass if force and acceleration are known?

• Mass = Force + Acceleration

• Mass = Force * Acceleration

• Mass = Force - Acceleration

• Mass = Force / Acceleration

What does Newton's Third Law of Motion state about action and reaction forces?

• For every action force, there is a larger reaction force.

• For every action force, there is a smaller reaction force.

• For every action force, there is no reaction force.

• For every action force, there is an equal and opposite reaction force.

Tags

NGSS.MS-PS2-1

In the demonstration of Newton's Third Law, what caused Buzz to jump into the air?

• The force of the bed.

• The force of the car.

• The force of the bouncy ball.

• The force of gravity.

Tags

NGSS.MS-PS2-1

Which of Newton's laws explains why an object will continue to move at the same speed and in the same direction unless acted upon by an unbalanced force?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• None of the above

What should you do to identify which of Newton's laws applies to actions in your everyday life?

• Observe and analyze the actions.

• Ask someone else.

• Ignore them.

• Read a book.