Podcast
Questions and Answers
What are the forces acting on a girl suspended motionless from the ceiling by two ropes?
What are the forces acting on a girl suspended motionless from the ceiling by two ropes?
Which forces are acting on an egg that is free-falling from a tree?
Which forces are acting on an egg that is free-falling from a tree?
What forces act upon a skydiver descending with constant velocity?
What forces act upon a skydiver descending with constant velocity?
When a rightward force is applied to a book moving across a desk at constant velocity, what forces are at play?
When a rightward force is applied to a book moving across a desk at constant velocity, what forces are at play?
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What forces are acting on a car coasting to the right and slowing down?
What forces are acting on a car coasting to the right and slowing down?
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Study Notes
Forces on Objects
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Book on Tabletop: Forces include normal force (perpendicular to the surface) and gravitational force (downward).
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Girl on Bar: Forces include gravitational force (downward) and two tension forces (upward, from the ropes).
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Free-Falling Egg: Forces include gravitational force (downward).
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Flying Squirrel: Forces include gravitational force (downward) and air resistance (opposite direction of motion).
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Book with Rightward Force: Forces include normal force, frictional force (opposite direction of motion), applied force (rightward), and gravitational force (downward).
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Physics Student's Backpack: Forces include gravitational force (downward) and tension force (upward, from the strap).
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Skydiver: Forces include gravitational force (downward) and air resistance (opposite direction of motion). The object is falling at a constant velocity.
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Sled: Forces include gravitational force (downward), normal force, applied force (rightward), and frictional force (opposite direction of motion). The object is accelerating to the right.
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Football: Forces include gravitational force (downward) and as it rises, there is a force of air resistance (opposite direction of motion).
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Coasting Car: Forces include gravitational force (downward), normal force, frictional force which opposes the motion (leftward if the car is going to the right), as it slows down.
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Description
This quiz explores the various forces acting on different objects, including normal and gravitational forces, tension forces, and air resistance. Test your understanding of how these forces interact through practical examples such as a book on a tabletop, a girl on a bar, and a skydiver. Perfect for students studying physics fundamentals!
