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Calculus-Based Physics > Module 2 - Newton's Laws > Flashcards

Module 2 - Newton's Laws Flashcards

The objective of the deck is to teach the user about Newton's Laws of Motion using flash cards.

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1
Q

What is the tendency of a force to rotate an object about an axis, fulcrum, or pivot?

A

Torque

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2
Q

What is the formula for Torque?

A

Force x Lever Arm

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3
Q

This is defined as the perpendicular distance from the axis of rotation to the line of action of the force.

A

Lever Arm

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4
Q

What type of quantity is Torque?

A

Vector Quantity

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5
Q

What is the standard unit of Torque?

A

Newton-meter

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6
Q

A force of 100N is applied to the edge of an object that is 2.0m wide. What is the torque on the object?

A

200 Nm

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7
Q

A force of 23.4N is applied to the edge of an object that is 9.13m wide. What is the torque on the object?

A

213.642 Nm

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8
Q

A force of 13N is applied to the edge of an object that is 102.3m wide. What is the torque on the object?

A

1329.9 Nm

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9
Q

A rope is tied to a door 10.4m from the hinge, creating an angle of 45 degrees. In an instant, a force of 23N is applied to the string. What is the torque of the string on the door?

A

169.14 Nm

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10
Q

A rope is tied to a door 4.0m from the hinge, creating an angle of 62.0 degrees. In an instant, a force of 190.0N is applied to the string. What is the torque of the string on the door?

A

671.0 Nm

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11
Q

A rope is tied to a door 8.68m from the hinge, creating an angle of 84.53 degrees. In an instant, a force of 293.28N is applied to the string. What is the torque of the string on the door?

A

2534.08 Nm

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12
Q

What do you call when both clockwise and counterclockwise torques are equal?

A

Balanced Torques

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13
Q

Which Condition of Equilibrium does Balanced Torques fall under?

A

Second Condition of Equilibrium

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14
Q

This law states that an object in motion or rest will remain in motion or rest unless acted upon by a greater force.

A

Law of Inertia

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15
Q

This is the tendency of an object to resist changes in its velocity.

A

Inertia

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16
Q

This quantity measures the mass of an object relative to the Law of Inertia.

A

Mass

17
Q

This quantity measures the pull of gravity on an object.

A

Weight

18
Q

What is the formula for weight?

A

Mass multiplied by gravity

19
Q

This quantity is the property of an object that specifies how much resistance an object has to changes in its velocity.

A

Mass

20
Q

True or False:

Mass is an extrinsic property of an object.

A

False

21
Q

True or False:

Mass is a scalar quantity.

A

True

22
Q

What is the SI unit of mass?

A

Kilograms (kg)

23
Q

This property of an object is equal to the magnitude of the gravitational force exerted on the object.

A

Weight

24
Q

What is the SI unit of weight?

A

Newtons

25
Q

This refers to an interaction with an object by means of muscular activity and some change in the object’s velocity.

A

Force

26
Q

True or False:

Force always causes motion in an object.

A

False

27
Q

These are what causes any change in the velocity of an object.

A

Force

28
Q

This is defined as the kind of force resisting the relative motion of surfaces sliding against each other.

A

Frictional Force

29
Q

This kind of friction keeps an object at rest.

A

Static Friction

30
Q

This kind of friction slows the movement of an object once static friction is overcome.

A

Kinetic Friction

31
Q

This is the ratio of friction to normal force.

A

Coefficient of Friction

32
Q

True or False:

The coefficient of static friction is greater than the coefficient of kinetic friction.

A

True

33
Q

This is known as the force with which gravity pulls an object.

A

Weight

34
Q

This is the force exerted on a body that may change its state of motion or rest.

A

Applied Force

35
Q

This is defined as the force that acts upward perpendicular to the surface that supports the weight of an object.

A

Normal Force

36
Q

This law of motion states that a particle’s acceleration is proportional to the net force acting on it.

A

Law of Acceleration

37
Q

What is the equation for Newton’s Second Law?

A

Acceleration is equal to the net force divided by the object’s mass.

38
Q
A

Calculus-Based Physics (2 decks)

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