7.P2U1.2

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-ESS1-2

NGSS.MS-PS2-4

If two charges attract to each other, then which of the following is true?

• Both charges must be positive.

• Both charges must be negative

• Both charges must be different.

• Both charges must be equal in value.

Tags

NGSS.MS-PS2-3

A student claims that the gravitational force between two objects depends upon the mass of the objects and the distance between them. Which argument best supports the student's claim?

• If the distance between two objects increases, the gravitational force between the objects will decrease.

• If the distance between two objects decreases, the gravitational force between the objects will disappear.

• If the distance between two objects increases, the gravitational force between the objects will increase.

• If the distance between two objects decreases, the gravitational force between the objects will not change.

Tags

NGSS.MS-PS2-4

Electrical current can produce which type of force?

• Chemical

• Gravitational

• Magnetic

• Nuclear

Tags

NGSS.MS-PS2-3

Cameron and Morgan are each holding a bar magnet with opposite poles facing each other. They walk in opposite directions until they stop feeling their magnet pull towards the other one. What can they conclude about the distance between them when they stop feeling their magnets pull?

• They are outside the magnetic field of their magnets.

• The distance made the magnets' force stronger.

• The magnetic fields are far enough apart to change direction.

• The magnetic field was weaker when they were close.

Tags

NGSS.MS-PS2-3

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

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

Which is needed to determine the amount of gravitational force between two objects?

• distance and mass

• weight and time

• area and weight

Tags

NGSS.MS-PS2-4

Why do we have a stronger gravitational attraction with Earth than the Sun?

• the sun has a larger mass

• the Earth has a larger mass

• we are closer to center of sun

• we are closer to center of Earth

Tags

NGSS.MS-PS2-4

A student drops a bowling ball and an apple from a third-story window. Both objects hit the ground at the same time. From the experiment, the student should conclude that

• the apple weighs more than the bowling ball

• more air friction is acting on the apple than on the bowling ball

• gravity pulls on both objects, causing them to fall at the same time.

Tags

NGSS.MS-PS2-4