An inertial reference frame is one in which

Newton's first law describes the behavior of matter.

the law of inertia is not applicable.

there is a great deal of matter.

the object of interest is traveling in a circular path.

A bell hangs from a blue rope. A red rope attached to the side of the bell is pulled in the horizontal direction. This causes the blue rope to make an angle less than 90 o with the vertical. Which of the following statements is true?

The blue rope is under greater tension than the red rope .

The red rope is under greater tension than the blue rope .

The red rope is under the same tension as the blue rope .

The tensions cannot be compared unless the mass of the bell is known.

An unknown force is applied to two unknown masses M A and M B . Their accelerations and are measured. From these data we can determine

the magnitude of F 1 → \overrightarrow{F_1} F 1 <path d="M0 241v40h399891c-47.3 35.3-84 78-110 128 -16.7 32-27.7 63.7-33 95 0 1.3-.2 2.7-.5 4-.3 1.3-.5 2.3-.5 3 0 7.3 6.7 11 20 11 8 0 13.2-.8 15.5-2.5 2.3-1.7 4.2-5.5 5.5-11.5 2-13.3 5.7-27 11-41 14.7-44.7 39-84.5 73-119.5s73.7-60.2 119-75.5c6-2 9-5.7 9-11s-3-9-9-11c-45.3-15.3-85 -40.5-119-75.5s-58.3-74.8-73-119.5c-4.7-14-8.3-27.3-11-40-1.3-6.7-3.2-10.8-5.5 -12.5-2.3-1.7-7.5-2.5-15.5-2.5-14 0-21 3.7-21 11 0 2 2 10.3 6 25 20.7 83.3 67 151.7 139 205zm0 0v40h399900v-40z"> only.

The Earth pulls downward on a pingpong ball with a force of 1N. If this is the "action" force, what is the "reaction" force?

The ping pong ball exerts a force of 1 N on the Earth

The ground exerts a force of 1N on the ping pong ball

The ping pong ball pushes down on the earth with a force of 1N

The is no reaction force when a gravitational force is involved

A 2000 kg car with a velocity of v collides head on with a 6000 kg truck with a velocity of -v. Which vehicle experiences the greater force? Which experiences the greater acceleration?

the car and truck experience equal force and the car experiences greater acceleration

The truck experiences the greater force and greater acceleration

The truck experiences the greater force but least acceleration

The truck experiences the greater force and the car the greater acceleration

AP Physics Ch. 4 Dynamics

Authored by Perry Lund

Physics

10th Grade - University

NGSS covered

Used 89+ times

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25 questions

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MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A force of 8 N is applied to a crate so that it moves at a constant velocity of 1.5 m/s. What is the net force on the crate?

1.5 N

8 N

12N

0 N

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Is it possible for the normal force to be equal to the gravitational force?

Yes. If the surface is horizontal and F_g is perpendicular to the surface.

Yes. If the surface is vertical and F_g is parallel to the surface.

No. F_N will always be less than F_g

No. F_g will be less than F_N.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Is it possible for the normal force to be zero?

Yes. If the surface is horizontal.

Yes. If the surface is vertical

No. F_N will always be less than F_g

No. F_g will be less than F_N.

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Is it possible for the object in the diagram to be moving to the right and have this free body diagram?

Yes. It's possible that the x forces were just left off the diagram.

Yes. It could be moving at a constant velocity.

No. The FBD shows that the system is in equilibrium on both the x- and y- axis.

No. An FBD shows all F.

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A force accelerates an object of mass M. The same force applied to a second body produces half the acceleration. What is the mass of the second body?

2 M

0.5 M

3 M

4 M

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A net force of 36 N acts on a mass of 9 kg. The resulting acceleration is _____.

6 m/s²

9 m/s²

4 m/s²

0 m/s²

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A mass of 15 kg is acted on by two forces, one of which is 15 N due east while the second one is 10 N due north. The acceleration of the mass is

1.67 m/s^2,56.3^o north of east.

1.2 m/s², 33.7^o north of east.

1.67 m/s², 56.3^o north of east.

1.67 m/s², 33.7^o north of east.

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A ball of mass 2.0 kg is acted on by two forces, $\overrightarrow{F_1}$ given by x-y components (-3.0N, +2.0 N) and $\overrightarrow{F_2}$ given by x-y components (+5.0 N, +3.0 N). The magnitude of the acceleration is _____.

5.4 N @ 68.2° N of E

2.7 N @ 21.8° N of E

2.7 N @ 68.2° N of E

5.4 N @ 68.2° N of E

Tags

NGSS.HS-PS2-1

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AP Physics Ch. 4 Dynamics

A force of 8 N is applied to a crate so that it moves at a constant velocity of 1.5 m/s. What is the net force on the crate?

Is it possible for the normal force to be equal to the gravitational force?

Is it possible for the normal force to be zero?

Is it possible for the object in the diagram to be moving to the right and have this free body diagram?

A force accelerates an object of mass M. The same force applied to a second body produces half the acceleration. What is the mass of the second body?

A net force of 36 N acts on a mass of 9 kg. The resulting acceleration is _____.

A mass of 15 kg is acted on by two forces, one of which is 15 N due east while the second one is 10 N due north. The acceleration of the mass is

A ball of mass 2.0 kg is acted on by two forces, $\overrightarrow{F_1}$ given by x-y components (-3.0N, +2.0 N) and $\overrightarrow{F_2}$ given by x-y components (+5.0 N, +3.0 N). The magnitude of the acceleration is _____.

The SI unit of force is the

The force needed to accelerate the rover Opportunity on Mars at 1 m/s² in the horizontal direction is ________ the force needed to accelerate the rover while it was undergoing testing on Earth.

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Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics

AP Physics Ch. 4 Dynamics

A force of 8 N is applied to a crate so that it moves at a constant velocity of 1.5 m/s. What is the net force on the crate?

Is it possible for the normal force to be equal to the gravitational force?

Is it possible for the normal force to be zero?

Is it possible for the object in the diagram to be moving to the right and have this free body diagram?

A force accelerates an object of mass M. The same force applied to a second body produces half the acceleration. What is the mass of the second body?

A net force of 36 N acts on a mass of 9 kg. The resulting acceleration is _____.

A mass of 15 kg is acted on by two forces, one of which is 15 N due east while the second one is 10 N due north. The acceleration of the mass is

A ball of mass 2.0 kg is acted on by two forces, F1→\overrightarrow{F_1}F1​​ given by x-y components (-3.0N, +2.0 N) and F2→\overrightarrow{F_2}F2​​ given by x-y components (+5.0 N, +3.0 N). The magnitude of the acceleration is _____.

The SI unit of force is the

The force needed to accelerate the rover Opportunity on Mars at 1 m/s2 in the horizontal direction is ________ the force needed to accelerate the rover while it was undergoing testing on Earth.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics

A ball of mass 2.0 kg is acted on by two forces, $\overrightarrow{F_1}$ given by x-y components (-3.0N, +2.0 N) and $\overrightarrow{F_2}$ given by x-y components (+5.0 N, +3.0 N). The magnitude of the acceleration is _____.

The force needed to accelerate the rover Opportunity on Mars at 1 m/s² in the horizontal direction is ________ the force needed to accelerate the rover while it was undergoing testing on Earth.