Forces Unit Assessment

Take our forces unit assessment quizzes with links back to lessons for support. This unit includes Newton's Laws of Motion and Various Forces.  The Pictures to the right and the title link to that sections review lesson.

1: Newtons First Law: Inertia

 

Newton's First Law Quiz

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Which of Newton's Laws describes an objects resistance to a change in motion or rest?

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Which statement is related to an objects inertia?

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How much force is required to keep an object in motion?

4 / 4

Which has more inertia?

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2: Newton's Second Law: Net Force Causes Acceleration

 

Newton's Second Law Quiz

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Which of Newton's Laws is most related to a larger object resisting a change of motion more than a less massive one?

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Which of Newton's Laws is most related to all the forces on an object causing the object to accelerate?

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Force and acceleration are ______________ related

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Acceleration and mass are ______________ related

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What is the mass of an object that accelerates at 4 m/s when 20 N of net force is applied?

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Net of three forces

What is the net force in the picture above

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What is the acceleration on a 5 kg object that has a force of 20 N applied to the right and 5 newtons applied to the left?

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What is the net force on a 5 kg object that has a force of 20 N applied to the right and 5 newtons applied to the left?

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Net force causes _____________________.  Pick the best answer

10 / 10

Which direction does an object accelerate?

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3: Mass and Weight

 

Mass and Weight Quiz

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Joe has a mass of 54 kg.  What is his mass on the moon where the acceleration due to gravity is 1.62 m/s2?

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Joe has a mass of 54 kg.  What is his weight on the moon where the acceleration due to gravity is 1.62 m/s2?

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Joe has a mass of 54 kg.  What is his weight on the earth?

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Which changes depending on your location?

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Which is the term for the molecules that make up an object.

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What would happen to your weight if you were on a planet with twice the acceleration due to gravity?

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4: Newton's Third Law: Action Reaction Pairs

Newton's Laws and The Third Law of Motion Quiz

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Which of Newton's Laws is most related to a larger object resisting a change of motion more than a less massive one?

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Which of Newton's Laws is most related to all the forces on an object causing the object to accelerate?

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Which of Newtons Laws are best represented by this scenario.

If you push on a wall with 50 N of force, the wall pushed on you with 50 N of force

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When you are on earth, which of the following is true?

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When hitting a baseball you apply 150 N of force with the bat on the ball.  How does the magnitude of force the ball applies to the bat compare?

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95kg Joe jumps off a 0.8kg skateboard and accelerates at 1.5 m/s/s right what is the acceleration of the skateboard?

F = ma

a = F/m

Forces on both are equal but if mass is less (its inversely related to acceleration) the acceleration caused by an equal force is more.

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When a more massive skater jumps of a less massive skateboard. Which is true of the scenario?

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When a bug hits your windshield.  Which of the following are true?

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5: Forces: Friction

 

Friction Quiz

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What type of friction do you have while an object is at rest?

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What is the magnitude of frictional force when 162 N of force is required to keep an object in constant motion?

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What is the magnitude of net force when 162 N of force is required to keep an object in constant motion?

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Which is almost always greater

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You use a spring scale to measure the amount of force required to first start an object moving.  You would use this value to determine the coefficient of ___________ friction.

 

Force applied equals the magnitude of force of friction in constant motion.  If you find the force of friction (Ff), you know the Force applied (FA)

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coefficient of friction table

What is the force required to keep a 0.5 kg brick in constant motion on a wood surface?

 

7 / 7

coefficient of friction table

What is the minimum force required to start a 0.5 kg brick moving on a wood surface?

 

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6: Forces: Air Resistance

 

Air Resistance and Terminal Velocity Quiz

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What is the acceleration of a 1400 N skydiver at terminal velocity?

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What is the weight of a 1400 N skydiver at terminal velocity?

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What is the air resistance force on a 1400 N skydiver at terminal velocity?

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What is net force of a 1400 N skydiver at terminal velocity?

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What is the acceleration of a 1400 N  skydiver when she encounters 600 N of air resistance?  (use g = 9.8 m/s/s)

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What is the mass of a 1400 N  skydiver when she encounters 600 N of air resistance?  (use g = 9.8 m/s/s)

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What is the net force when a 1400 N skydiver encounters 600 N of air resistance?

8 / 8

What is the acceleration of a 1400 N skydiver that has no air resistance?

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7: Tension Force

 

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Tension Quiz

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How much tension must be in a rope attached above an object if the normal force on a 500 N object is 100 N.

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Tension in rope at angle

Solve for the tension in one of the ropes suspending the object above.

3 / 5

What is the tension in each of two ropes vertically suspending a 45 kg object? (use g = 9.8 m/s/s)

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What is the tension in a rope suspending a 45 kg object? (use g = 9.8 m/s/s)

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What is the tension in a rope when you apply a force of 100 N to pull an object forward in constant motion.

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8: Hooke's Law and Spring Force

 

4

Hooke's Law and Springs Quiz

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What happens to the magnitude of force required to stretch a spring 0.1 m when the spring constant increases?

2 / 4

How much force is in a spring that has a spring constant of 4400 N/m that is displaced 0.03 m?

3 / 4

What is the spring constant of a spring displaced 0.1 meters when 400 N of force is applied?

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What is the displacement of a spring that has a spring constant of 2000 N/m when a force of 500N is applied?

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9: Forces on Incline Planes

 

Incline Plane Quiz

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Incline Question Pic

Which letter above represents weight?

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Incline Question Pic

Which letter above represents the parallel force?

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Incline Question Pic

Which letter above represents normal force?

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Incline Question Pic

Which letter above represents friction?

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Incline Question Pic

Which number above is where the incline angle would be placed?

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What happens to the normal force as the angle of incline increases?

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What happens to the downhill force as the angle of incline increases?

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What happens to the frictional force as the angle of incline increases?

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What is the weight of a 4.0 kg object on a 25° frictionless Incline Plane? (Use g = 9.8 m/s2)

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What is the acceleration of a moving object on a 4.0 kg object on a 25° Incline Plane that has a coefficient of friction with the object of 0.43?

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What is the Normal force on a 4.0 kg object on a 25° Incline Plane?

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What is the downhill force on a 4.0 kg object on a 25° Incline Plane?

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What is the frictional force of a moving object on a 4.0 kg object on a 25° frictionless Incline Plane that has a coefficient of friction with the object of 0.43?

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