Light
What is light?
Light is something that makes vision possible.
What is Chemical Change?
Chemical change is when the substance's composition is changed.
What is Newton's First Law of Motion?
If a boy is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
Why Does mass affect gravity?
So as the mass of either object increases, the force of gravitational attraction between them also increases.
What is Kinetic and Potential Energy?
Kinetic Energy- Energy an object has because of its motion.
Potential Energy- Energy that is stored into an object because of its position.
How is light reflected?
Reflection occurs when light traveling through one material bounces off a different material.
What are signs that show that chemical change has occurred?
Color change, formation of a precipitate, formation of a gas, odor change, temperature change.
What is Newton's Third Law of Motion?
When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction.
What force is caused by gravity?
The force caused by gravity is G-Force
What causes an object to increase in potential energy?
The amount of energy the object has is dependent on its height and mass.
How is light absorbed?
The frequency of light waves is/near the energy levels of electrons.
What causes chemicals to react to each other?
When two molecules collide with the right orientation and sufficient force, a chemical reaction may result.
What are Newton's first, second, and third laws of motion sometimes called?
The first law is sometimes called the Law of Inertia, the second law is sometimes called the Law of Acceleration, and the third law is sometimes called action-reaction.
In which way does an arrow point in a free body diagram?
The arrow direction indicates force direction.
Describe the relationship between mass and kinetic.
As mass increases so does the Kinetic Energy of an object.
How does light affect the world?
Light helps the world because it radiates solar energy which makes life possible. It also helps the human body, heat and temperature.
What causes a chemical change?
The main cause of chemical reaction is the desire of atoms to get stable electronic configuration.
What is Newton's Second Law of Motion?
The acceleration of an object is dependent upon two variables of the object.
What is the relationship between gravity force and distance?
Inversely proportional to the square of the separation distance between the two interacting objects
What causes an increase in kinetic energy?
An increase in speed can cause a change in kinetic energy.
How is light transmitted?
Light is transmitted at the boundary line between two different materials, when the light waves are transmitted they continue through the material.
What is a starting substance in a chemical reaction?
The reactants.
When did Newton discover the laws of motion?
It was discovered in 1687.
Why do mass and distance affect gravity?
The amount of gravity that something possesses is proportional to its mass and distance between it and another object.
Describe the relationship between speed and kinetic energy.
The kinetic energy of an object is directly proportional to the square of its speed.