Science

• Energy is the ability to do work
• Applied force is a force that is applied to an object by external means
• Kinetic Energy is a form of energy due to the move ment of objects.
• Force is a push or pull with causes energy to change
• The force that pulls an object towards earth or makes an object fall to the ground is called gravity.
• Potential energy is defined as the energy is stored in an object position.
• Motion is the change of position of an object
• Reference point Is described as a stationary object
• Velocity can be described as speed in a given direction.
• Friction force or the force between two surfaces.
• Inertia is the resistance of an object to change speed or direction.
• Interaction force requires a pair of forces acting on two objects.
• Light energy Is a form of electromagnetic radiation from hot objects such as the sum
• The sun is the primary source of visible light wich is part of electromagnetic spectrum
• Photon can carry energy but is massless
• Absorption refers to the process of absorbing radiant energy
• Reflection This refers to bouncing of light on an object
• Refraction refers to bending of light or the change in direction