Which option describes a phase change?

• Air leaking from a tire

• A helium balloon rising into the sky

• Gasoline evaporating into the air

• Plasma erupting from the sun

Tags

NGSS.MS-PS1-4

Which sentence explains why gases can change volume but liquids cannot?

• The forces holding atoms together are stronger in liquids than gas

• Gravity affects liquid atoms more than gas atoms

• Liquid atoms are more like solid atoms than gas atoms

• The forces holding liquid together are more flexible than those in a gas

Tags

NGSS.MS-PS3-4

What does the force of gravity between two objects depend on?

• The masses of the two objects and the distance between them

• Only the mass of the smaller object and its distance from the larger object

• Only the mass of the two objects

• The mass of the smaller object and the speed at which it's moving

Tags

NGSS.HS-PS2-4

Why is the force of gravity greater for an object orbiting Earth than for the same object orbing Pluto?

• Earth has a heavy atmosphere and Pluto doesn't

• Earth has only one moon, Pluto has three

• Earth is more massive than Pluto

• Earth is closer to the sun than Pluto

Tags

NGSS.HS-PS2-4

Which of the following is the energy of motion?

• Nuclear energy

• Chemical potential energy

• Gravitational potential

• Kinetic energy

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Which of the following is a form of stored energy?

• Kinetic energy

• Heat energy

• Chemical potential energy

• Sound energy

Tags

NGSS.HS-PS3-2

Which object has stored gravitational potential energy?

• A mouse eating cheese

• A leaf hanging on a tree

• A lightbulb burning

• A car sitting in the driveway

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

Hands moving on a batter-operated clock is an example of what kind of energy conversion?

• Chemical potential energy being converted to kinetic energy

• Gravitational potential energy being converted to heat energy

• Kinetic energy being converted to chemical potential energy

• Heat energy being converted to gravitation potential energy

Tags

NGSS.HS-PS3-3

Water draining from a water tower is an example of what kind of energy conversion?

• Kinetic energy being converted to heat energy

• Gravitational potential energy being converted to kinetic energy

• Chemical potential energy being converted to heat energy

• Gravitational potential energy being converted into chemical potential energy

Tags

NGSS.HS-PS3-2

Lighting a match is an example of what kind of energy conversion?

• Kinetic energy being converted to chemical potential energy

• Gravitational potential energy being converted to heat energy

• Chemical potential energy being converted to gravitational potential energy

• Chemical potential energy being converted to heat energy

Tags

NGSS.HS-PS3-4