Podcast
Questions and Answers
Which of the following best describes the effect a force cannot achieve on an object?
Which of the following best describes the effect a force cannot achieve on an object?
- Increasing the object's mass. (correct)
- Starting the motion of a stationary object.
- Changing the object's shape.
- Changing the object's direction of motion.
According to Newton's Second Law of Motion, what is the relationship between force, mass, and acceleration when mass is constant?
According to Newton's Second Law of Motion, what is the relationship between force, mass, and acceleration when mass is constant?
- Force is inversely proportional to mass and inversely proportional to acceleration.
- Force is directly proportional to mass and directly proportional to acceleration. (correct)
- Force is inversely proportional to mass and directly proportional to acceleration.
- Force is directly proportional to mass and inversely proportional to acceleration.
A person is pushing a box across a floor. Which type of force is primarily opposing the sliding motion of the box?
A person is pushing a box across a floor. Which type of force is primarily opposing the sliding motion of the box?
- Gravitational Force
- Applied Force
- Frictional Force (correct)
- Tension Force
In the context of rotational motion, what is the effect of increasing the distance from the pivot point at which a force is applied?
In the context of rotational motion, what is the effect of increasing the distance from the pivot point at which a force is applied?
Why are door handles typically placed far away from the hinges?
Why are door handles typically placed far away from the hinges?
What distinguishes a 'couple' from a single force acting on an object?
What distinguishes a 'couple' from a single force acting on an object?
In a numerical problem, a force of 20 N is applied at a distance of 0.5 meters from the pivot point. What is the magnitude of the moment of force (torque)?
In a numerical problem, a force of 20 N is applied at a distance of 0.5 meters from the pivot point. What is the magnitude of the moment of force (torque)?
What is the SI unit for the moment of force?
What is the SI unit for the moment of force?
If multiple forces are acting on an object and there is no change in its state of motion, what condition is the object in?
If multiple forces are acting on an object and there is no change in its state of motion, what condition is the object in?
What distinguishes static equilibrium from dynamic equilibrium?
What distinguishes static equilibrium from dynamic equilibrium?
A seesaw is perfectly balanced with two children of equal weight sitting on opposite ends at equal distances from the pivot. Which type of equilibrium does this demonstrate?
A seesaw is perfectly balanced with two children of equal weight sitting on opposite ends at equal distances from the pivot. Which type of equilibrium does this demonstrate?
In a system in equilibrium, if the clockwise moment created by one force is 25 Nm, what must be the sum of the anticlockwise moments?
In a system in equilibrium, if the clockwise moment created by one force is 25 Nm, what must be the sum of the anticlockwise moments?
What defines the center of gravity of an object?
What defines the center of gravity of an object?
Where is the center of gravity located for a uniform circular ring?
Where is the center of gravity located for a uniform circular ring?
Two equal and opposite parallel forces not acting along the same line will create what?
Two equal and opposite parallel forces not acting along the same line will create what?
A uniform meter rule is pivoted at its midpoint (50 cm). A weight of 20 gf is suspended at the 70 cm mark. To balance the rule, where should a weight of 40 gf be suspended?
A uniform meter rule is pivoted at its midpoint (50 cm). A weight of 20 gf is suspended at the 70 cm mark. To balance the rule, where should a weight of 40 gf be suspended?
What type of motion does a satellite orbiting the Earth demonstrate?
What type of motion does a satellite orbiting the Earth demonstrate?
In uniform circular motion, which quantity remains constant?
In uniform circular motion, which quantity remains constant?
Why is centrifugal force often referred to as a fictitious force?
Why is centrifugal force often referred to as a fictitious force?
A man applies a force of 150 N to a wrench with a lever arm of 0.4 m to open a nut. Later, he only applies 60 N but still manages to open the nut. What is the new length of the lever arm?
A man applies a force of 150 N to a wrench with a lever arm of 0.4 m to open a nut. Later, he only applies 60 N but still manages to open the nut. What is the new length of the lever arm?
Flashcards
What is Force?
What is Force?
A push or pull that can change the state of rest or motion of an object.
What is Tension Force?
What is Tension Force?
Force that arises when an object is pulled.
What is Friction?
What is Friction?
Opposition to sliding movements between surfaces in contact.
What is Linear Motion?
What is Linear Motion?
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What is Rotational Motion?
What is Rotational Motion?
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What is Torque?
What is Torque?
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What is Anticlockwise Rotation?
What is Anticlockwise Rotation?
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What is a Couple (Forces)?
What is a Couple (Forces)?
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What is Equilibrium?
What is Equilibrium?
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What is Static Equilibrium?
What is Static Equilibrium?
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What is Dynamic Equilibrium?
What is Dynamic Equilibrium?
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What is the Principle of Moments?
What is the Principle of Moments?
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What is the Center of Gravity?
What is the Center of Gravity?
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What is Circular Motion?
What is Circular Motion?
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What is Uniform Circular Motion?
What is Uniform Circular Motion?
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What is Acceleration?
What is Acceleration?
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What is Centrifugal Force?
What is Centrifugal Force?
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What is Translational Motion?
What is Translational Motion?
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What is Rotational Motion?
What is Rotational Motion?
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What is SI and CG Units Relationship?
What is SI and CG Units Relationship?
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Study Notes
Problem Solving – Nut Opener
- A scenario is presented involving opening a nut
- A man applies 150 N of force with a lever length of 0.4 meters
- The problem involves finding the lever length required if the man applies only 60 N of force
Finding SI and CGS Units Relationship
- 1 Newton is equal to 10^5 dynes
Final Advice
- Remembering the topics is key to succeeding in the exam
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