Newton's 3rd Law is also known as...

• the law of conservation of mass.

• the law of action-reaction.

• the law of conservation of energy.

• the law of inertia.

• the law of gravity.

Tags

NGSS.MS-PS2-1

A contact force is...

• a push or a pull on an object by another object that is touching it.

• a push or a pull on an object that is not touching it.

• a molecularly stable isotope force that favors magnetism.

• a push that enables gravity to counteract magnetism.

Tags

NGSS.MS-PS2-2

A box is being pushed to the right with a force of 10 N and pulled to the left with a force of 4 N. What is the net force acting on the box?

• 6 N to the left

• 6 N to the right

• 14 N to the right

• 14 N to the left

Tags

NGSS.MS-PS2-2

Which of the following is an example of a balanced force?

• A car accelerating on a highway

• A book resting on a table

• A ball rolling down a hill

• A person pushing a shopping cart

What force is responsible for keeping a satellite in orbit around the Earth?

• Friction

• Magnetism

• Gravity

• Applied force

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which force opposes the motion of a sliding object?

• Gravity

• Friction

• the Dark side

• Normal force

According to Newton's Third Law of Motion, what happens when you push against a wall?

• The wall moves

• The wall pushes back with equal force

• The wall absorbs the force

• We all fall down

If a person is sitting on a chair, what is the force pair acting between the person and the chair?

• Gravity and friction

• Normal force and applied force

• The person's weight and the chair's support force

• Magnetism and gravity

Tags

NGSS.MS-PS2-2

Which of the following is an example of an unbalanced force?

• A book lying on a table

• A car parked on a hill

• A person running

• A picture hanging on a wall

Tags

NGSS.MS-PS2-2

What type of force is exerted by a magnet?

• Friction

• Gravity

• Magnetism

• Normal force

• Magical mystery force

Tags

NGSS.MS-PS2-3