Study GuidesExam QuestionsPast Papers
AP®PhysicsCollege BoardPhysics 1: Algebra-BasedExam QuestionsUnit 2: Force & Translational DynamicsForces & Free-Body Diagrams

Forces & Free-Body Diagrams (College Board AP® Physics 1: Algebra-Based): Exam Questions

15 mins15 questions

Select a download format for Forces & Free-Body Diagrams

Scroll for more
Easy
Medium
Hard
1
Sme Calculator1 mark

Which of the following statements correctly describes the motion of an object when a net force of zero is exerted on it?

  • The object is stationary.

  • The object's direction will change but not its speed.

  • The object's speed will change but not its direction.

  • The object's velocity will remain constant.

Choose your answer

Did this page help you?

2
Sme Calculator1 mark

Which of the following statements correctly describes the normal force?

  • The normal force arises from the repulsion of electrons in atoms.

  • The normal force is always parallel to the surface.

  • The normal force is directed towards the surface.

  • The normal force is a non contact force.

Choose your answer

Did this page help you?

3
Sme Calculator1 mark

Which of the following correctly describes forces as interactions?

  • Forces are properties of a single object.

  • Forces always result from interactions between two objects.

  • Forces are independent of the environment.

  • Forces only exist if an object is in motion.

Choose your answer

Did this page help you?

4
Sme Calculator1 mark

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

  • Gravitational force.

  • Tension in a cable.

  • Magnetic force.

  • Electrostatic force.

Choose your answer

Did this page help you?

5
Sme Calculator1 mark

Which of the following correctly describes translational equilibrium?

  • The net force acting on the object is zero.

  • The object must remain stationary.

  • Friction always balances the applied force.

  • The object has no forces acting on it.

Choose your answer

Did this page help you?

1
Sme Calculator1 mark

When a person steps onto an electronic scale on the floor of a stationary elevator it gives a reading of 60 space kg.

Which of the following is most nearly the reading on the scale when the elevator accelerates upwards at 3 space straight m divided by straight s squared?

  • 42 space kg

  • 60 space kg

  • 78 space kg

  • 780 space straight N

Choose your answer

Did this page help you?

2
Sme Calculator1 mark

An object of mass 5 space kg is placed at the top of a frictionless inclined plane of length 15 space straight m and vertical height 10 space straight m.

Which of the following is most nearly the magnitude of the net force on the object as it slides down the inclined plane?

  • 8.7 cross times 10 to the power of negative 3 end exponent space straight N

  • 1.3 space straight N

  • 33 space straight N

  • 42 space straight N

Choose your answer

Did this page help you?

3
Sme Calculator1 mark

A block of mass 5.0 space kg rests on an inclined plane making an angle of 30 degree with the horizontal. The coefficient of static friction between the block and the plane is mu subscript s space equals space 0.4.

Which of the following is the maximum angle at which the block will remain stationary?

  • 10 degree

  • 20 degree

  • 22 degree

  • 30 degree

Choose your answer

Did this page help you?

4
Sme Calculator1 mark

A 10.0 space kg box is suspended by two ropes at angles of 45 degree and 60 degree to the horizontal.

Which of the following best describes the tension in the rope at 60 degree?

  • 60 space straight N

  • 73 space straight N

  • 81 space straight N

  • 100 space straight N

Choose your answer

Did this page help you?

5
Sme Calculator1 mark

A 20.0 space kg box is pushed across a horizontal surface with a horizontal force of 50.0 space straight N. The coefficient of kinetic friction between the box and the surface is mu subscript k space equals space 0.2.

Which of the following is the acceleration of the box along the horizontal surface?

  • 0.50 space straight m divided by straight s squared

  • 0.70 space straight m divided by straight s squared

  • 1.0 space straight m divided by straight s squared

  • 1.2 space straight m divided by straight s squared

Choose your answer

Did this page help you?

1
Sme Calculator1 mark

An object is released from rest at the top of a frictionless inclined plane at a height of 0.8 space straight m. The angle of incline is 15 space degree.

Which of the following is most nearly the speed of the object at the bottom of the incline?

  • 4.0 space straight m divided by straight s

  • 7.0 space straight m divided by straight s

  • 16 space straight m divided by straight s

  • 260 space straight m divided by straight s

Choose your answer

Did this page help you?

2
Sme Calculator1 mark

An object of mass 5.0 space kg slides down a rough inclined plane starting from rest. The incline of length 10.0 space straight m makes an angle of 30 degree with the horizontal and the coefficient of static friction between the object and the incline is mu subscript k space equals space 0.2.

Which of the following correctly describes the magnitude of the acceleration down the incline?

  • 0.8 space straight m divided by straight s squared

  • 1.6 space straight m divided by straight s squared

  • 3.3 space straight m divided by straight s squared

  • 24.5 space straight m divided by straight s squared

Choose your answer

Did this page help you?

3
Sme Calculator1 mark

A uniform beam of length 6.0 space straight m and weight 500.0 space straight N is supported at one end by a hinge and at the other by a rope attached 1.0 space straight m from the beam's free end. A 300.0 space straight N load is placed 2.0 space straight m from the hinge.

Which of the following best describes the tension in the rope?

  • 300 space straight N

  • 400 space straight N

  • 450 space straight N

  • 500 space straight N

Choose your answer

Did this page help you?

4
Sme Calculator1 mark

A 10.0 space kg box is pulled across a rough horizontal surface by two ropes. The first rope applies a force of 30.0 space straight N at an angle of 40 degree above the horizontal, and the second rope applies at force of 20.0 space straight N at an angle of 20 degree below the horizontal. The coefficient of kinetic friction between the box and the surface is mu subscript k space equals space 0.25.

Which of the following is most nearly the acceleration of the box?

  • 0.8 space straight m divided by straight s squared

  • 1.2 space straight m divided by straight s squared

  • 1.5 space straight m divided by straight s squared

  • 2.0 space straight m divided by straight s squared

Choose your answer

Did this page help you?

51 mark

A 4.0 space kg object is suspended by two ropes. One rope is horizontal, and the other rope makes an angle of 50.0 degree with the vertical.

Which of the following is most nearly the magnitude of the tension in the horizontal rope?

  • 50.0 space straight N

  • 55.0 space straight N

  • 61.0 space straight N

  • 65.0 space straight N

Choose your answer

Did this page help you?