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.
What is the tendency of a force to rotate an object about an axis, fulcrum, or pivot?
Torque
What is the formula for Torque?
Force x Lever Arm
This is defined as the perpendicular distance from the axis of rotation to the line of action of the force.
Lever Arm
What type of quantity is Torque?
Vector Quantity
What is the standard unit of Torque?
Newton-meter
A force of 100N is applied to the edge of an object that is 2.0m wide. What is the torque on the object?
200 Nm
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?
213.642 Nm
A force of 13N is applied to the edge of an object that is 102.3m wide. What is the torque on the object?
1329.9 Nm
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?
169.14 Nm
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?
671.0 Nm
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?
2534.08 Nm
What do you call when both clockwise and counterclockwise torques are equal?
Balanced Torques
Which Condition of Equilibrium does Balanced Torques fall under?
Second Condition of Equilibrium
This law states that an object in motion or rest will remain in motion or rest unless acted upon by a greater force.
Law of Inertia
This is the tendency of an object to resist changes in its velocity.
Inertia
This quantity measures the mass of an object relative to the Law of Inertia.
Mass
This quantity measures the pull of gravity on an object.
Weight
What is the formula for weight?
Mass multiplied by gravity
This quantity is the property of an object that specifies how much resistance an object has to changes in its velocity.
Mass
True or False:
Mass is an extrinsic property of an object.
False
True or False:
Mass is a scalar quantity.
True
What is the SI unit of mass?
Kilograms (kg)
This property of an object is equal to the magnitude of the gravitational force exerted on the object.
Weight
What is the SI unit of weight?
Newtons
This refers to an interaction with an object by means of muscular activity and some change in the object’s velocity.
Force
True or False:
Force always causes motion in an object.
False
These are what causes any change in the velocity of an object.
Force
This is defined as the kind of force resisting the relative motion of surfaces sliding against each other.
Frictional Force
This kind of friction keeps an object at rest.
Static Friction
This kind of friction slows the movement of an object once static friction is overcome.
Kinetic Friction
This is the ratio of friction to normal force.
Coefficient of Friction
True or False:
The coefficient of static friction is greater than the coefficient of kinetic friction.
True
This is known as the force with which gravity pulls an object.
Weight
This is the force exerted on a body that may change its state of motion or rest.
Applied Force
This is defined as the force that acts upward perpendicular to the surface that supports the weight of an object.
Normal Force
This law of motion states that a particle’s acceleration is proportional to the net force acting on it.
Law of Acceleration
What is the equation for Newton’s Second Law?
Acceleration is equal to the net force divided by the object’s mass.
