Kinetic and Potential Energy

In regards to gravity, the greater the mass the greater the energy. Which statement supports this true statement?

• Earth's core will not allow objects of great mass to collide with the crust at a high speed because there is only a certain amount of mass that can be pulled to the core.

• A shopping bag has very little mass and will not produce much energy if dropped however a boulder would produce a lot of energy.

• Throwing a rock into a body of water will produce a small splash and a piece of paper will produce a big splash.

• The smaller the energy is based on the higher the density, mass, and volume.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-1

A _______________ is a relationship between two variables when a graph of one variable versus the other is a straight line; it can be represented by the equation y=mx+b.

Draw an example of the transformation of energy from potential to kinetic or vice versa. You must include the motion that is taking place and how energy is changing or being transferred.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Choose the best definition for the word constant.

• a relationship between two variable when a graph of one variable versus the other is a straight line; it can be represented by the equation y=mx+b

• the steepness of a line on a graph, calculated by dividing the change in the y value by the change in the x value for any two points on the line.

• a relationship between two variables when a graph of one variable versus the other is not a straight line.

• describes a value the does not change. For example the force of gravity on an object will not change because of the mass of the object.

Tags

NGSS.MS-PS1-5

Choose the best definition for nonlinear relationship.

• a relationship between two variable when a graph of one variable versus the other is a straight line; it can be represented by the equation y=mx+b

• the steepness of a line on a graph, calculated by dividing the change in the y value by the change in the x value for any two points on the line.

• a relationship between two variables when a graph of one variable versus the other is not a straight line.

• the total energy of an isolated system always remains the same.

Choose the best definition for slope.

• a relationship between two variable when a graph of one variable versus the other is a straight line; it can be represented by the equation y=mx+b

• the steepness of a line on a graph, calculated by dividing the change in the y value by the change in the x value for any two points on the line.

• a relationship between two variables when a graph of one variable versus the other is not a straight line.

• the point at which a skiers potential energy gets converted into kinetic energy and will continue to decrease because the potential energy is increasing as they go down.

Choose the best definition for the law of conservation of energy.

• a scientific law that states that the energy of an isolated system always remains the same. Only a portion of it will stay the same.

• a scientific law that states that the total energy of an isolated system always remains the same.

• a scientific law that states an energy system that does not use any of the energy and in fact creates more for later use when acted upon by a force.

• the point at which a skiers potential energy gets converted into kinetic energy and will continue to decrease because the potential energy is increasing as they go down.

Tags

NGSS.MS-PS3-5

Choose the best definition for potential energy.

• the energy of an isolated system always remains the same. Only a portion of it will stay the same.

• the total energy of an isolated system such as a yo-yo that remains the same even while in use.

• the energy stored in a system due to the positions of objects in the system that are interacting at a distance.

• the energy being used in a system due to the positions of objects in the system that are interacting at a distance.

Tags

NGSS.MS-PS3-2

Choose the best definition for kinetic energy.

• the energy of an object or objects have while they are in motion. An example would a volleyball being spiked during a game.

• the total energy of an isolated system such as a yo-yo that remains the same even while in use.

• the energy stored in a system due to the positions of objects in the system that are interacting at a distance.

• a skier at the top of his second hill while not in motion is at the highest of his energy that causes motion.

Tags

NGSS.MS-PS3-1

During a soccer match a penalty kick is being made. At the point that the ball is headed toward the net and the goalie is diving toward a direction of the where he thinks the ball is going to go, what is the relationship between potential and kinetic energy?

• The potential energy is falling and the kinetic energy is rising in the ball but not the goalie.

• The potential energy has gone down and the kinetic energy is rising in the goalie and the ball.

• The potential energy is rising and the kinetic energy is falling in the goalie and the ball.

• The potential energy is falling and the kinetic energy is rising in the goalie but not the ball.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5