According to the instructions for drawing free body diagrams, what does a longer arrow indicate?

A longer arrow indicates a stronger force.

A longer arrow indicates a weaker force.

A longer arrow indicates a smaller mass.

A longer arrow indicates a slower speed.

Which of the following best represents the free-body diagram for a skydiver who is falling downward and speeding up?

A downward arrow labeled 'gravity' and a smaller upward arrow labeled 'air resistance'.

A single upward arrow labeled 'gravity'.

A downward arrow labeled 'air resistance' and an upward arrow labeled 'gravity'.

Two equal arrows, one up and one down, both labeled 'gravity'.

Draw the free-body diagram for a rightward-moving car with locked wheels that is skidding to a stop. What are the forces present?

F_grav (down), F_norm (up), F_frict (left)

F_grav (up), F_norm (down), F_frict (right)

F_grav (down), F_norm (up), F_frict (right)

F_grav (down), F_norm (down), F_frict (left)

Which of the following best represents the free-body diagram for a freight elevator attached by a cable, being pulled upward, and slowing down, without touching the sides of the elevator shaft?

Two forces: an upward tension force from the cable and a downward gravitational force, with the tension force smaller than gravity.

Two forces: an upward tension force from the cable and a downward gravitational force, with the tension force larger than gravity.

Only one force: an upward tension force from the cable.

Two forces: an upward tension force from the cable and a downward gravitational force, with both forces equal in magnitude.

Look at the force diagrams below. Which diagram shows balanced forces?

The diagram with 25 N up, 25 N down, 15 N left, and 15 N right

The diagram with 25 N up, 25 N down, 15 N left, and 25 N right

What happens to moving objects when forces are balanced?

They continue to move with the same speed and direction

What happens when there are balanced forces acting on an object?

The object remains at rest or moves with constant velocity

Which of the following graphs represents an object remaining at rest under balanced forces?

A horizontal line on a position vs. time graph

A diagonal line on a position vs. time graph

A curved line on a position vs. time graph

A vertical line on a position vs. time graph

What do unbalanced forces cause objects to do?

Accelerate (speed up, slow down, or change direction)

When the unbalanced force is directed rightward, the object accelerates rightward. Which of the following is true?

The object moves to the right and speeds up

The object moves to the left and slows down

Which of the following is true according to the information provided?

B) Forces cause objects to accelerate in a specific direction.

A) Forces cause objects to move in a specific direction.

What is a Free Body Diagram?

Authored by Reuben Davis

Science

10th Grade

NGSS covered

Used 1+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a Free Body Diagram represent?

Only the gravitational force acting on an object

All the forces acting upon an object

Only the applied force on an object

Only the frictional force on an object

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: In a Free Body Diagram, arrows represent the _______.

forces

velocities

distances

masses

Tags

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT true about force arrows in a Free Body Diagram?

They are labeled according to type

They are always the same length

They point in the direction of the force

Their length is proportional to the strength of the force

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To determine what types of forces are acting on an object, you should ask if there is a planet, a charge, or a magnet nearby. What does the presence of these indicate?

There is an F_grav, F_elect, or F_magnet acting on the object.

The object is moving at a constant speed.

The object is not affected by any forces.

The object is only affected by friction.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is anything touching the object right now?

Yes

Maybe

Not sure

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Refer to the diagram of forces acting on the object. Which force acts upward on the object?

F_grav

F_norm

F_fric

F_app

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Refer to the diagram of forces acting on the object. Which force represents the applied force?

F_grav

F_norm

F_fric

F_app

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What is a Free Body Diagram?

What does a Free Body Diagram represent?

Fill in the blank: In a Free Body Diagram, arrows represent the _______.

Which of the following is NOT true about force arrows in a Free Body Diagram?

To determine what types of forces are acting on an object, you should ask if there is a planet, a charge, or a magnet nearby. What does the presence of these indicate?

Is anything touching the object right now?

Refer to the diagram of forces acting on the object. Which force acts upward on the object?

Refer to the diagram of forces acting on the object. Which force represents the applied force?

According to the instructions for drawing free body diagrams, the first step is to draw an arrow for each force, directed in the ______ that it acts.

According to the instructions for drawing free body diagrams, what does a longer arrow indicate?

Look at the diagram showing a book at rest on a table. Which forces are acting on the book?

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