Podcast
Questions and Answers
What is described as the change in position of an object?
What is described as the change in position of an object?
- Direction
- Speed
- Force
- Motion (correct)
Which law states that an object at rest stays at rest unless acted upon by an external force?
Which law states that an object at rest stays at rest unless acted upon by an external force?
- First Law (Law of Inertia) (correct)
- Second Law (F=ma)
- Law of Universal Gravitation
- Third Law (Action-Reaction)
What does friction do in relation to the motion of objects?
What does friction do in relation to the motion of objects?
- Enhances the speed of moving objects
- Resists the motion of an object (correct)
- Allows objects to slide indefinitely
- Causes an object to accelerate
According to the Second Law (F=ma), what is the relationship between force, mass, and acceleration?
According to the Second Law (F=ma), what is the relationship between force, mass, and acceleration?
Which of the following correctly defines inertia?
Which of the following correctly defines inertia?
Flashcards
Force
Force
A push or pull that can make an object move.
Motion
Motion
The change in position of an object.
Speed
Speed
How fast an object moves.
Inertia
Inertia
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Acceleration
Acceleration
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Study Notes
Matching Terms
- Force: A push or pull that can make an object move.
- Motion: The change in an object's position.
- Speed: How fast an object moves.
- Direction: The way an object is moving.
- First Law (Law of Inertia): An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.
- Second Law (F=ma): The force acting on an object is equal to its mass times its acceleration.
- Third Law (Action-Reaction): For every action, there is an equal and opposite reaction.
- Acceleration: A change in an object's speed or direction.
- Friction: The force that resists the motion of an object when it comes in contact with another surface.
- Inertia: The tendency of an object to resist changes in its motion.
Examples
- First Law (Law of Inertia) Example: A soccer ball remains stationary until you kick it.
- Second Law (F=ma) Example: It takes more force to move a heavier object than a lighter one.
- Third Law (Action-Reaction) Example: Jumping off a boat pushes the boat backward.
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