Newton's First and Second Laws

Watch the first marble as it collides with the second marble. 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

As the marble accelerates down the ramp, it's net force causes the marble at the bottom to accelerate.

Tags

NGSS.MS-PS2-1

What is Newton's 1st Law?

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

• An object at rest will stay at rest, an object in motion will stay in motion, unless an unbalanced force acts upon it.

Which of the following is an example of balancing forces?

• A Book resting on the table.

• A pencil is knocked off the desk.

Tags

NGSS.3-PS2-1

What is Newton's 2nd Law?

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

• Acceleration depends on two variables, the mass of the object and the amount of force.

Tags

NGSS.MS-PS2-2

What explains why objects resist changes in their state of motion?

• gravity

• inertia

• force

• friction

What explains a quantity that has BOTH speed and direction?

• Inertia

• Force

• Speed

• Velocity

Newton's first law states that an object must travel at a constant speed and in ___________, unless an unbalanced force acts on it.

• in a circle

• a wave like manner

• the same direction

Looking at the image. Decide if this is balanced or unbalanced.

• Unbalanced

• Balanced

Looking at the image. Decide if this is balanced or unbalanced.

• Unbalanced

• Balanced

Tags

NGSS.MS-PS2-2

The force that prevents a ball rolling on the ground from continuing on it's path forever is...

• Friction

• Gravity

• Inertia

Tags

NGSS.MS-PS2-2