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Questions and Answers
What is the force that opposes motion between two surfaces in contact?
What is the force that opposes motion between two surfaces in contact?
- Normal force
- Gravitational force
- Frictional force (correct)
- Electromagnetic force
What is the type of friction that occurs when an object is stationary and is subjected to an external force?
What is the type of friction that occurs when an object is stationary and is subjected to an external force?
- Rolling friction
- Kinetic friction
- Static friction (correct)
- Fluid friction
What is the force that acts perpendicular to the surface and is responsible for the normal contact between two surfaces?
What is the force that acts perpendicular to the surface and is responsible for the normal contact between two surfaces?
- Normal force (correct)
- Gravitational force
- Frictional force
- Tangential force
What is the type of friction that occurs when an object is moving and is subjected to an external force?
What is the type of friction that occurs when an object is moving and is subjected to an external force?
What is the force that acts along the surface and is responsible for the frictional force between two surfaces?
What is the force that acts along the surface and is responsible for the frictional force between two surfaces?
Match the types of friction with their descriptions:
Match the types of friction with their descriptions:
Match the forces with their effects:
Match the forces with their effects:
Match the types of surfaces with their effects on friction:
Match the types of surfaces with their effects on friction:
Match the effects of friction with their descriptions:
Match the effects of friction with their descriptions:
Match the factors with their effects on friction:
Match the factors with their effects on friction:
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Study Notes
Since the text is "Generate a exam for me class 9 physics carvan books house chapter 6 and e", I'm assuming you want study notes for Class 9 Physics, Carvan Books House, Chapter 6 (Motion and Time) and possibly Chapter E (not specified). Here are the notes:
Motion
- Motion is a change in the position of an object over time
- It can be described in terms of distance, displacement, speed, velocity, and acceleration
Types of Motion
- Rectilinear motion: motion along a straight line
- Circular motion: motion in a circular path
- Oscillatory motion: repetitive back-and-forth motion
Distance and Displacement
- Distance: total length of the path travelled by an object
- Displacement: shortest distance between initial and final positions
Speed and Velocity
- Speed: distance travelled per unit time
- Velocity: displacement per unit time
- Velocity is a vector quantity, having both magnitude and direction
Acceleration
- Acceleration: change in velocity per unit time
- It is a vector quantity, having both magnitude and direction
- SI unit of acceleration is m/s²
Graphical Representation of Motion
- Distance-time graph: a straight line represents uniform motion
- Velocity-time graph: a straight line represents uniform acceleration
- Acceleration-time graph: a straight line represents uniform change in acceleration
Since the text is "Generate a exam for me class 9 physics carvan books house chapter 6 and e", I'm assuming you want study notes for Class 9 Physics, Carvan Books House, Chapter 6 (Motion and Time) and possibly Chapter E (not specified). Here are the notes:
Motion
- Motion is a change in the position of an object over time
- It can be described in terms of distance, displacement, speed, velocity, and acceleration
Types of Motion
- Rectilinear motion: motion along a straight line
- Circular motion: motion in a circular path
- Oscillatory motion: repetitive back-and-forth motion
Distance and Displacement
- Distance: total length of the path travelled by an object
- Displacement: shortest distance between initial and final positions
Speed and Velocity
- Speed: distance travelled per unit time
- Velocity: displacement per unit time
- Velocity is a vector quantity, having both magnitude and direction
Acceleration
- Acceleration: change in velocity per unit time
- It is a vector quantity, having both magnitude and direction
- SI unit of acceleration is m/s²
Graphical Representation of Motion
- Distance-time graph: a straight line represents uniform motion
- Velocity-time graph: a straight line represents uniform acceleration
- Acceleration-time graph: a straight line represents uniform change in acceleration
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