Non-Contact Forces

Explain how mass affects the gravity between objects.

Mass affects the gravitational force between objects, as mass and gravity are directly proportional to each other. Therefore, if the mass increases, the gravitational force increases-vice versa.

Explain why your weight would change if you were on the moon.

Your weight would change while on the moon because the moon has less mass.

Give examples of objects that would have different gravitational force based on mass.

One example is me and Earth. Earth has a larger mass than me, so it would have a greater gravitation force. Another example is me and air. Air has a lower amount of mass than me, so I have a greater gravitational pull than it does.

Explain how distance affects gravity.

Distance affects gravity because they are inversely proportional. As distance increases, gravity decreases, and vice versa.

Explain why we don’t feel the gravitational pull between ourselves and other objects on Earth.

We don’t feel the gravitational pull between ourselves and other objects on Earth because we have a smaller amount of mass compared to Earth, which has a much greater amount of mass, so we, in turn, don’t feel the gravitational pull.

Differentiate between directly proportional and inversely proportional relationships with respect to gravity, mass, and distance.

A direct proportional relationship exists between two variables where one changes at the same rate as the other. So as mass increases, the gravity increases, and if the mass decreases, the gravity decreases. An inversely proportional relationship is when two quantities change in opposite directions. So if the distance increases, gravity decreases, and if the distance decreases, the gravity increases.

Explain how mass determines why a particular object will revolve around another object in space. 

Mass determines why a particular object will revolve around another object through the force of gravity. The more mass an object has, the greater the gravity.

Identify the 3 ways to increase the strength of an electromagnet. 

Increase the number of coils, change how thick the wire is, and higher the voltage.

Explain how poles on different magnetics react to each other.

Opposite poles attract, so the North and South poles. The same poles repel each other.

Identify the strongest point on a magnet.

The strongest point on a magnet is the poles.

Identify materials that are conductors and insulators.

Materials that are conductors are steel, water, copper, silver, iron, and gold. 

Materials that are insulators are cotton, plastic, wood, glass, paper, and rubber. 

Differentiate between a permanent magnet and an electromagnetic.

A permanent magnet is a magnet that has a constant magnetic field, while an electromagnet produces an magnetic field that can be turned off and on by controlling the electrical current.

Identify which type of charges are attracted to each other and which repel each other. 

Opposite charges attract and same charges repel.

Explain how distance plays a role in a magnetic field and the effects of the field.

As the distance increases, the strength of the magnetic field decreases. Vis versa.

Differentiate between voltage, amperage (amps), and resistance. 

Voltage is the measure of the force/pressure.

Amperage is the measure of the electrical current.

Resistance is the resisting factor. It slows the current of electricity down. Materials with high resistance (insulators) resist the flow of electrons, while materials with low resistance (conductors) allow electrons to flow easily. 

Identify the direction of gravitational pull on an object on Earth. 

Towards the center of the Earth.

Differentiate between static electricity and a current.

Static electricity is at rest, while current electricity flows on a specific path.

Differentiate between an open and closed circuit. 

An open circuit is when the lights would be off, and a closed circuit is when the lights are on. If the switch is up, then the circuit is closed, and if the switch is down and the circuit is open.

Explain the energy conversion in a simple motor. 

Electrical energy is converted into mechanical energy.