S8P5 Electricity & Magnetism Review

How would the gravitational force between Earth and the Moon change if the distance between the two objects doubled, but all other factors stayed the same?

• The gravitational force between Earth and the Moon would decrease by a proportional amount.

• The gravitational force between Earth and the Moon would increase by a proportional amount.

• The gravitational force between Earth and the Moon would completely disappear.

• The gravitational force between Earth and the Moon would remain constant.

A student claims that gravitational fields exist between objects that are not in contact with each other. She creates a diagram of two figures. The width of the arrows in Figure A and Figure B represent the strength of the gravitational attraction between two objects. The student claims the gravitational force is greater between the objects in Figure A. Which argument best supports her claim?

• The masses of the objects in Figure A are less than the masses of the objects in Figure B.

• The diameters of the objects in Figure A are greater than the diameters of the objects in Figure B.

• The distance between the objects in Figure A is shorter than the distance between the objects in Figure B.

• The surface area of the larger object in Figure A is greater than the surface area of the larger object in Figure B.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Use the diagram below of spheres at varying distances apart to answer the question that follows. Which of the diagrams shows the least gravitational force?

• I

• II

• III

• IV

Tags

NGSS.MS-PS2-4

The law of conservation of charge states that:

• charge is not created or destroyed or transferred from object to object

• the mass of all substances present before a chemical change equals the mass of all the substances remaining after the change

• electric charge is not created or destroyed only transferred from object to object

• charge can be created and destroyed but cannot be transferred

Use the table below to answer this question.

• As the distance between the objects increases, the size of the electric force decreases

• As the distance between the objects increases, the objects become more positively charged.

• The size of the electric force is constant.

• As the size of the objects increases, the size of the electric force between them decreases.

Tags

NGSS.MS-PS2-3

What is the difference between charging by conduction and charging by induction?

• During conduction, charges move between objects that briefly touch; during induction, charges move between objects that are rubbed together.

• During induction, charges move between objects that briefly touch; during conduction, charges move between objects that are rubbed together.

• During conduction, charges move between touching objects; during induction, charges are rearranged within an object that is near another object.

• During induction, charges move between touching objects; during conduction, charges are rearranged within an object that is near another object

In which arrangement of magnets will all the magnets attract?

• Arrangement a

• Arrangement b

• Arrangement c

• Arrangement d

Tags

NGSS.MS-PS2-5

The Sun is the center of our solar system, which includes planets, dwarf planets, asteroids, and comets. Which statement best explains why all objects, including planets, orbit the Sun, instead of the Sun orbiting one or more planets?

• Planets have less mass than the Sun.

• The Sun rotates faster than any of the planets.

• The Sun formed before the planets or other objects.

• Planets are further from the center of the solar system.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The table below shows Herman's mass and the mass of different plants in our solar system. If Herman were to stand on each plant, which list correctly orders the planets from most gravitational force to least gravitational force?

• Earth, Mars, Venus

• Earth, Venus, Mars

• Venus, Mars, Earth

• Venus, Earth, Mars

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

A student claims that a magnetic field can affect objects that are not in direct contact with each other. Which argument best supports the students' claim?

• A ball rolls downhill and eventually comes to a stop.

• A light bulb becomes hot to the touch after being lit.

• A compass needle points to the north from any location.

• A lightning bolt releases a charge from the sky to the ground.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5