Week 33 extra credit

What is gravity?

• The force that attracts a body towards the center of the earth, or towards any other physical body having mass.

• The force that repels objects away from each other.

• The process by which plants make food using sunlight.

• A type of energy that is used in power plants.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Does Earth have a gravity field?

• Yes, it does.

• No, it does not.

• Only in certain areas.

• Only during the day.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What happens when something is inside Earth's gravity field?

• It experiences a force pulling it towards the center of the Earth.

• It levitates without any force.

• It disintegrates into smaller particles.

• It spontaneously combusts.

Tags

NGSS.MS-PS2-4

What happens when something is outside Earth's gravity field?

• It continues to orbit Earth

• It floats freely in space

• It is pulled towards the Sun

• It returns to Earth's surface

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What does an electric field describe in physics?

• The potential energy per unit charge in a field

• The force a charge experiences in a field

• The speed of electrons moving through a conductor

• The resistance offered by a material to the flow of electric current

Tags

NGSS.MS-PS2-5

What do field lines around charged particles represent?

• The direction of magnetic forces

• The strength and direction of electric fields

• The speed of charged particles

• The temperature around charged particles

Tags

NGSS.HS-PS3-5

How do the field lines behave around a positive charge?

• Lines move in towards the charge

• Lines move out from the charge

• Lines are parallel around the charge

• No lines are present around the charge

What does the closeness of field lines around a charged particle indicate?

• Lower electrical resistance

• Higher temperature

• Greater strength of the electric field

• Weaker strength of the electric field

How do field lines behave around a negative charge?

• Lines move out from the charge

• Lines move in towards the charge

• Lines are discontinuous around the charge

• Lines form circular loops around the charge

Which diagram depicts a higher charge?

• Diagram A

• Diagram B

• Both diagrams depict the same charge

• Neither diagram depicts any charge

Tags

NGSS.MS-PS2-3