Identifying Forces

What is the definition of a force?

• A type of energy

• A push or a pull on an object

• The speed of an object

• The color of an object

Tags

NGSS.MS-PS2-1

Which term describes a force that resists the sliding motion of two surfaces that are touching?

• Gravity

• Magnetism

• Friction

• Net force

What is a contact force?

• A force that acts at a distance

• A push or pull on one object by another object that is touching it

• A force that only exists in space

• A force that cannot be measured

Tags

NGSS.4-PS3-3

Which force is responsible for objects being attracted toward the Earth?

• Magnetism

• Friction

• Gravity

• Normal force

Tags

NGSS.MS-PS2-4

What is the term for the combination of all the forces acting on an object?

• Balanced force

• Net force

• Normal force

• Applied force

Tags

NGSS.MS-PS2-2

Which of the following is a noncontact force?

• Friction

• Normal force

• Magnetism

• Applied force

Tags

NGSS.MS-PS2-5

What is Newton's Third Law of Motion?

• An object at rest stays at rest

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

• Force equals mass times acceleration

• Energy cannot be created or destroyed

Tags

NGSS.MS-PS2-1

Which force is the support force exerted on an object that touches another stable object?

• Gravity

• Normal force

• Friction

• Magnetism

What do we call forces acting on an object that combine and form a net force of zero?

• Unbalanced forces

• Balanced forces

• Applied forces

• Contact forces

Which of the following best describes force pairs?

• Two forces that act in the same direction

• The forces two objects apply to each other

• Forces that cancel each other out

• Forces that only exist in liquids