A and B

If Earth had twice the mass it has now, how would the gravitational force between it and the Sun change?

• The gravitational force would be twice as much as it is now.

• The gravitational force would be four times as much as it is now.

• The gravitational force would be half as much as it is now.

• The gravitational force would be the same as it is now.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of the diagrams shows the least gravitational force?

• I

• II

• III

• IV

Tags

NGSS.MS-PS2-4

Which of the diagrams shows the greatest gravitational force?

• I

• II

• III

• IV

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Two new planets are discovered, planet X and planet Y. The planets have identical volumes, but the mass of planet X is two times greater than the mass of planet Y. If two identical space ships land on each planet, which of the following will be true?

• The mass of the space ship on planet Y will be greater than the mass of the space ship on planet X.

• The weight of the space ship on planet Y will be greater than the weight of the space ship on planet X.

• The mass of the space ship on planet X will be greater than the mass of the space ship on planet Y.

• The weight of the space ship on planet X will be greater than the weight of the space ship on planet Y.

Tags

NGSS.MS-PS2-4

A magnet can hold a piece of paper to the door of a refrigerator. How does the magnet stick without touching the door?

• Gravity attracts the magnet to the door.

• The magnet induces a magnetic field in the paper.

• The magnetic force of the magnet can act at a distance.

• Atoms from the magnet pass through the paper and touch the door.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Why doesn’t the gravitational pull between the Sun and the planets cause the planets to fall into the Sun?

• The background stars pull back on the planets.

• The Sun’s magnetic fields are pushing out.

• The speed of the planets flings them out.

• The Sun’s rotation pushes the planets out.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which of the following might make the spoons repel each other?

• Neither A nor B is electrically charged.

• Both A and B are negatively charged.

• A is positively charged, and B is negatively charged

• A is negatively charged, and B is not electrically charged.

Tags

NGSS.MS-PS2-3

• an organism

• a community

• a population

• an ecosystem

Tags

NGSS.MS-LS2-2

Which of the following shows the correct order of these pictures from the highest level to the lowest level of organizations?

• A

• B

• C

• D

Which of the following is the highest level of organization in this forest environment?

• all of the organisms living and interacting in the environment

• the hawk flying in the sky over the forest

• the group of shrubs occupying a part of the environment

• all of the pine trees living closely together in the forest

Tags

NGSS.MS-LS2-1