STC BIOL 2401 CH.2 Vocab Question Quiz

What is the definition of matter?

• Anything that has energy and volume

• Anything that occupies space and has mass

• Any solid substance

• Anything composed of molecules only

Tags

NGSS.MS-PS1-5

Energy is best defined as:

• The movement of particles in space

• The ability to do work

• The total number of protons and neutrons

• A type of chemical bond

Which energy type is stored in chemical bonds?

• Electrical energy

• Chemical energy

• Radiant energy

• Kinetic energy

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-4

The smallest unit of an element that retains its properties is a(n):

• Atom

• Proton

• Electron

• Molecule

The atomic number of an element is the number of:

• Neutrons

• Protons

• Electrons plus neutrons

• Protons plus neutrons

An isotope is an atom that:

• Has a different number of protons

• Has the same number of protons but different neutrons

• Has no electrons

• Is chemically inactive

Which term describes a molecule with an unstable nucleus that emits radiation?

• Isotope

• Radioisotope

• Ion

• Dipole

Tags

NGSS.HS-PS1-8

What is a molecule?

• A mixture of substances

• Two or more atoms bonded together

• An electrically charged atom

• A substance that dissolves in water

Tags

NGSS.HS-LS1-6

A compound is defined as:

• A molecule made of identical atoms

• A molecule made of two or more different elements

• A physical mixture

• A type of ion

Which term describes a homogeneous mixture where solutes do not settle out?

• Suspension

• Solution

• Colloid

• Emulsion