First Law of Motion

What is the net force?

• 400 N Up

• 400 N Down

• - 400 N Down

• 800 N Down

Tags

NGSS.MS-PS2-2

What is Newton's First Law

• F=ma

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion. 

• Friction 

According to Newton's first law, an object in motion will stay in what kind of motion as long as the net forces acting on it are zero?

• slowing motion in a straight line

• accelerating motion in a straight line

• constant motion in a straight line

• constant motion in an unpredictable direction

Newton's first law of motion states that __________.

• when a force is applied on an object, there is an equal force applied by the object in the opposite direction

• hen a force acts on an object, its acceleration is in the same direction as the force

• an object will remain at rest or keep moving with a constant velocity unless a force acts on it

• cceleration is calculated by dividing the force exerted on an object by the mass of the object

An object is resting motionless on a surface. According to Newton's 1st Law, the object will only start to move if

• the net forces on the object equal zero

• an unbalanced force is applied to the object

• the upward force of the object is equal to its acceleration

• two forces that are equal and opposite are applied to the object

Tags

NGSS.MS-PS2-2

What is Newton's First Law of Motion?

• F=m x a

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion unless acted on by another force. 

• Friction 

What is Newton's First Law known as? The Law of

• Friction

• Mass

• Inertia

• Gravity

Slamming on the brakes in a moving car makes a passenger move forward against his or her seat belt because

• the passenger has the inertia to keep moving forward

• the passenger is being pushed by the seats of the car

• the passenger is better able to stop themselves in this manner

• the passenger has an equal and opposite force supporting their weight

Tags

NGSS.MS-PS2-2

Which of these is an example of Newton's First Law, inertia?

• pushing against a brick wall, and the brick wall does not move

• pushing against a stationary wheelbarrow, and the wheelbarrow accelerates forward

• pushing a wheelbarrow full of bricks, and the bricks slide back toward the handles

• pushing a wagon to the top of a hill, and the wagon to the top of hill and the wagon accelerates down the hill without assistance

A cup of coffee sits on the dashboard of an automobile. The car goes around a sharp curve. Even though you hold the cup still, coffee splashes out. This is explained due to 

• density

• friction

• gravity

• inertia