A biker travels at constant velocity. All of the following are true except:

He has a net force acting on him.

The force of friction acts opposite the direction of his motion.

The force of friction is equal to the forward force he applies.

The normal force is equal to his weight.

A falling skydiver opens his parachute. A short time later, the weight of the skydiver-parachute system and the drag force exerted on the system are equal in magnitude. Which of the following statements predicts the motion of the skydiver at this time?

The skydiver is moving downward with constant speed.

The skydiver is moving downward with an upward acceleration.

The skydiver is moving downward with a downward acceleration.

A student must determine the inertial mass of a block that is pulled across a horizontal surface using a force probe and an accelerometer. The student’s data are represented in the graph above. What must the student do to determine the inertial mass of the block?

Calculate the area under the line.

Given the FBD, which of the following must be true?

The box must be accelerating to the left.

The box must be accelerating to the right.

The box must be moving to the left.

The FBD is incorrectly drawn. This situation isn't possible

Regarding the system showed in the picture, which of the following statements is FALSE?

T 3 is equal to the scalar sum of the magnitudes of T 2 and T 1

T 3 is equal in magnitude to F g

The x- components of the T 1 and T 2 and equivalent but in opposite directions

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them. Which of Newton's Laws best explains how this is possible?

None of the above; this is best explained by static friction

An elevator carrying a person of mass m is moving upward and slowing down. How does the magnitude F of the force exerted on the person by the elevator floor compare with the magnitude mg of the gravitational force?

F can be greater than or less than mg , depending on the speed of the elevator.

A ball is moved from Earth to a planet that has a gravitational acceleration that is double that of Earth. How does the gravitational force on the ball when it is on the new planet compare to the gravitational force on the ball when it is on Earth?

The gravitational force on the ball when it is on the new planet is double the force on the ball when it is on Earth.

The gravitational force on the ball when it is on the new planet is half the force on the ball when it is on Earth.

The gravitational force on the ball when it is on the new planet is the same as the force on the ball when it is on Earth.

The gravitational force on the ball when it is on the new planet is one-fourth the force on the ball when it is on Earth.

AP Physics 1 Forces

Authored by Charles Martinez

Physics

9th - 12th Grade

NGSS covered

Used 1+ times

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25 questions

Show all answers

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Inertia is entirely based on an object's:

Speed

Size

Mass

Volume

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the relationship between the force the cannon puts on the ball and the force the ball puts back on the cannon?

The force on the ball is greater

The force on the cannon is greater

The forces are equal

The forces are unequal, but it's impossible to say which way

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is an example of action-at-a-distance?

Applied Forces

The Force of Gravity

The Normal Force

The Force of Tension

Tags

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

The force of gravity

Electric forces

The force of friction

Magnetic forces

MULTIPLE SELECT QUESTION

1 min • 1 pt

When a kangaroo jumps, the kangaroo applies an action force on the ground. Which of the following is true regarding the action force? Select two answers.

Is greater than the action force

Is equal to the action force

Cancels out the action force

Is exerted by the ground

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How would you find the vertical component of F₁?

20.0 * sin(35)

20.0 * cos(35)

20.0 * tan(35)

20.0 * (35)

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How would you find the horizontal component of F₁?

20.0 * sin(35)

20.0 * cos(35)

20.0 * tan(35)

20.0 * (35)

Tags

NGSS.HS-PS2-1

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AP Physics 1 Forces

Inertia is entirely based on an object's:

What is the relationship between the force the cannon puts on the ball and the force the ball puts back on the cannon?

Which of the following is an example of action-at-a-distance?

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

When a kangaroo jumps, the kangaroo applies an action force on the ground. Which of the following is true regarding the action force? Select two answers.

How would you find the vertical component of F1?

How would you find the horizontal component of F1?

A biker travels at constant velocity. All of the following are true except:

A falling skydiver opens his parachute. A short time later, the weight of the skydiver-parachute system and the drag force exerted on the system are equal in magnitude. Which of the following statements predicts the motion of the skydiver at this time?

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How would you find the vertical component of F₁?

How would you find the horizontal component of F₁?