10 Questions
What is the definition of force?
An action that changes or maintains the motion of a body or object
Gravity is an example of a contact force.
False
What is the energy an object possesses due to its motion?
Kinetic Energy
A stretched rubber band is an example of ______________________ energy.
Elastic Potential
What type of force is friction?
Contact force
Match the following types of energy with their definitions:
Kinetic Energy = Energy of motion Potential Energy = Stored energy based on position or state
A moving car on a road is an example of potential energy.
False
A ball held high above the ground is an example of ______________________ energy.
Gravitational Potential
What type of force is air resistance?
Non-contact force
What is the difference between kinetic energy and potential energy?
Kinetic energy is the energy of motion, while potential energy is stored energy based on position or state.
Study Notes
Forces
- A force is an action that changes or maintains the motion of a body or object, and can be defined as a push or a pull.
- Forces can change an object's speed, direction, and shape.
Types of Forces
- Push and Pull Forces:
- Push: Kicking a ball
- Pull: Plucking a guitar string
- Non-contact and Contact Forces:
- Non-contact Force: A force applied to an object by another body that is not in direct contact with it (e.g. Gravity)
- Contact Force: A force between two objects that can only exist if they make direct contact with each other (e.g. Friction)
Examples of Forces
- Gravity
- Tension
- Normal (Contact) Force
- Kinetic Friction
- Static Friction
- Air Resistance (Drag)
- Elastic (Spring) Force
Energy
- Kinetic Energy:
- Definition: Energy an object possesses due to its motion
- Examples: A moving car on a road, a running person, wind moving a turbine
Types of Potential Energy
- Gravitational Potential Energy:
- Definition: Energy stored in an object due to its position or state
- Examples: A ball held high above the ground, water stored in a dam
- Elastic Potential Energy:
- Examples: A stretched rubber band, a compressed spring
- Chemical Potential Energy:
- Examples: Energy stored in food, batteries storing energy
Summary
- Kinetic Energy: Energy of motion
- Potential Energy: Stored energy based on position or state
Learn about the basics of forces, including definition, types, and examples. Explore how forces can change an object's speed, direction, and shape.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
