Unit 7 Review

What is an applied force?

• A force from a person or another object

• A force of attraction between masses

• A force from a rope or string

• A force that resists motion

What is drag?

• A force that opposes motion between surfaces

• A force that opposes motion from air or water

• Resistance to a change in motion

• Inertia

What is friction

• A force that opposes motion between surfaces

• A force of attraction between 2 masses

• A force applied from an object

• A force applied from a surface

How do we calculate acceleration according to Newton's Second Law?

• a = v/t

• a = d/t

• a = Fm

• a = F/m

Tags

NGSS.MS-PS2-2

What is the first step of drawing a Free Body Diagram?

• Label the forces on the arrows

• Identify all the types of forces acting on the object

• Draw the object in detail

• Draw the arrows on the box

Which Law is described here: An a book is at rest on a table and will stay that way unless someone picks it up

• Law of Gravity

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

How would we describe the forces acting on an object that is moving at a constant speed?

• Balanced

• Unbalanced

• Neither

How would we describe the forces acting on an object that is slowing down?

• Balanced

• Unbalanced in the SAME direction as motion

• Unbalanced in the OPPOSITE direction of motion

• None of these

Tags

NGSS.HS-PS2-1

What TYPES of forces would be acting on a skydiver falling from a plane? Select all that are correct.

• gravity

• applied

• normal

• drag

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Identify all the forces acting on an object being pushed across a surface.

• Friction

• Applied

• Normal

• Gravity

Tags

NGSS.MS-PS2-2