Presentation is loading. Please wait.

Presentation is loading. Please wait.

WORK AND ENERGY.

Published byBrooke Lee Modified over 6 years ago

Similar presentations

Presentation on theme: "WORK AND ENERGY."— Presentation transcript:

1 WORK AND ENERGY

2 Is it work?

3 FORCE MAKES SOMETHİNG MOVE
WORK

4 Which statements are the examples of work ?
A teacher applies a force to a wall and becomes exhausted.  A book falls off a table and free falls to the ground.  A waiter carries a tray full of meals above his head by one arm straight across the room at constant speed. A rocket accelerates through space.

5 ANSWERS NOT WORK WORK

6 SO A METARİAL, HAS MORE ENERGY WHEN HOT THAN WHEM COLD
MEASURED İN JOULES MOVING OBJECTS HAVE ENERGY SOLİD TEMPERATURE RİSES ATOMS MOVE FASTER HEATED SO A METARİAL, HAS MORE ENERGY WHEN HOT THAN WHEM COLD

7 FORMS OF ENERGY Kinetic energy: This is an energy due to motion
Scaler quantity

8 FORMS OF ENERGY POTENTIAL ENERGY position shape state

9 FORMS OF ENERGY GRAVITATIONAL POTENTIAL ENERGY
Gravitational potential energy is the energy stored in an object as the result of its height.

10

11 Use this principle to determine the blanks in the following diagram
Use this principle to determine the blanks in the following diagram. Knowing that the potential energy at the top of the tall platform is 50 J, what is the potential energy at the other positions shown on the stair steps and the incline?

12 Elastic Potential Energy
A stretched rubber band can do work when released, so can a compressed spring. Both have elastic potential energy.

13 Chemical Potential Energy
When a fuel burns, its energy is released by chemical reactions. The energy stored in the fuel is called chemical potential energy.

14 Electrical Potential Energy
In circuits, the current is a flow of tiny charged particles called electrons. These come from atoms. Electrons can transfer energy from a battery or a light bulb. They have electrical potential energy.

15 Nuclear Potential Energy
An atom has a nucleus. This is made up of particles. In some atoms, the particles become rearranged, or the nucleus splits, and energy is released. This is called nuclear potential energy.

16 Thermal Energy When hot objects cool down, their atoms and molecules slow down and lose energy. This is known as thermal energy. Engines use thermal energy to do work.

17 Radiated Energy The Sun radiates light. Loudspeakers radiate sound. Light and sound both travel in the form of waves. These carry energy.

Download ppt "WORK AND ENERGY."

Similar presentations

What is energy?.

What is energy?.
Work Work: Work is said to be done when the point of application of a force moves and it is measured using the product of force and the distance moved.

Work Work: Work is said to be done when the point of application of a force moves and it is measured using the product of force and the distance moved.
Energy Energy: Energy is the capacity of a body to do work.

Energy Energy: Energy is the capacity of a body to do work.
ENERGY AND WORK SPH4C/SPH3U Findlay. Energy  Energy can be defined as the capacity to work or to accomplish a task.  Example: burning fuel allows an.

ENERGY AND WORK SPH4C/SPH3U Findlay. Energy  Energy can be defined as the capacity to work or to accomplish a task.  Example: burning fuel allows an.
 Thermal energy is the energy that is associated with the motion of the particles in a substance.  All matter is made up of atoms (particles) that move.

 Thermal energy is the energy that is associated with the motion of the particles in a substance.  All matter is made up of atoms (particles) that move.
The Nature of Energy An unbalanced force must be applied to an object to change its motion. Work is the force over a distance. Energy is the ability to.

The Nature of Energy An unbalanced force must be applied to an object to change its motion. Work is the force over a distance. Energy is the ability to.
Forms and Transformations

Forms and Transformations
Energy: its forms and uses

Energy: its forms and uses
Simple Electric Circuits

Simple Electric Circuits
Energy is said to be the ability to do work. That means the ability to make something happen. By “happen” it means to make things move or change condition.

Energy is said to be the ability to do work. That means the ability to make something happen. By “happen” it means to make things move or change condition.
Forms of Energy. Nature of Energy Energy is the ability to do work. If an object or organism does work, then it uses energy. Work is the use of a force.

Forms of Energy. Nature of Energy Energy is the ability to do work. If an object or organism does work, then it uses energy. Work is the use of a force.
Energy Power-point. Energy The ability of a system to perform work. It can be transferred and converted, but not created or destroyed.

Energy Power-point. Energy The ability of a system to perform work. It can be transferred and converted, but not created or destroyed.
Forms and Transformations

Forms and Transformations
ENERGY.

ENERGY.
Types Of Energy To know all types of energy. Energy Look at the following pictures - what can we say about the energy in each example: - –Where do you.

Types Of Energy To know all types of energy. Energy Look at the following pictures - what can we say about the energy in each example: - –Where do you.
PHYSICS – Energy. LEARNING OBJECTIVES 1.7.1 Energy Core Identify changes in kinetic, gravitational potential, chemical, elastic (strain), nuclear and.

PHYSICS – Energy. LEARNING OBJECTIVES Energy Core Identify changes in kinetic, gravitational potential, chemical, elastic (strain), nuclear and.
Forms of Energy. Energy Energy Energy- The ability to do work Energy- The ability to do work Work- A transfer of energy Work- A transfer of energy Work.

Forms of Energy. Energy Energy Energy- The ability to do work Energy- The ability to do work Work- A transfer of energy Work- A transfer of energy Work.
WORK Work = When a force acts upon an object to cause displacement of the object. 3 key ingredients : force, displacement, cause A force is exerted upon.

WORK Work = When a force acts upon an object to cause displacement of the object. 3 key ingredients : force, displacement, cause A force is exerted upon.
Sun Source of almost all the energy is the… Wood, coal, petroleum and natural gas come from the sun. The USA gets 90% of its energy from fossil fuel.

Sun Source of almost all the energy is the… Wood, coal, petroleum and natural gas come from the sun. The USA gets 90% of its energy from fossil fuel.
Energy is said to be the ability to do work. That means the ability to make something happen. By “happen” it means to make things move or change condition.

Energy is said to be the ability to do work. That means the ability to make something happen. By “happen” it means to make things move or change condition.

Similar presentations

Ads by Google