Physical Science Final

A chemical reaction in which thermal energy is released is ____.

• flammable

• formula

• endothermic

• exothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

In the reaction, Na + Cl NaCl, how many grams of NaCl would be formed from 12 grams of Na and 9 grams of Cl?

• 1.3 g

• 3 g

• 21 g

• 108 g

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What type of bond is formed when one atom loses electrons to another atom and they are then joined by having opposite charges?

• covalent

• magnetic

• ionic

• metallic

What is the name of the ionic compound with the formula Li₂O?

• oxygen lithide

• lithium oxygen

• lithium oxate

• lithium oxide

If you go to the Moon, your weight will be ____ it would be on Earth.

• the same as

• greater than

• less than

• unknown

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

A toy car moving at 10 km/h has less momentum than a real car moving at the same speed because the toy car ____.

• has less mass

• generates less friction

• has greater mass

• has greater forward motion

Tags

NGSS.MS-PS2-2

Newton’s 3rd Law states, “to every ________________ there is an equal and opposite _________.”

• reaction force ; action force

• action force ; reaction force

Tags

NGSS.MS-PS2-1

Energy stored due to your position above the Earth is called __________________.

• elastic potential energy

• kinetic energy

• gravitational potential energy

• chemical potential energy

Tags

NGSS.MS-PS3-2

Which of the following causes some of the energy transferred to an object to be converted into thermal energy?

• mechanical advantage

• gravity

• friction

• efficiency

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A material that reduces the flow of heat by conduction, convection, and radiation is ____.

• insulator

• solar collector

• conductor

• compensator

Tags

NGSS.MS-PS3-3