8th Science 1st Semester Exam

What is the electromagnetic spectrum?

• A range of all types of electromagnetic radiation

• A list of all known elements

• A chart of chemical reactions

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Which of the following is a property of transverse waves?

• They travel in a circular motion

• They move parallel to the direction of the wave

• They move perpendicular to the direction of the wave

What is the main difference between elements and compounds?

• Elements are made of one type of atom, compounds are made of two or more types of atoms

• Elements are always gases, compounds are always solids

• Elements can be broken down into simpler substances, compounds cannot

What is water cohesion?

• The attraction between water molecules and other substances

• The attraction between water molecules themselves

• The ability of water to dissolve substances

On the pH scale, what number represents a neutral solution?

• 0

• 7

• 14

According to Newton's First Law of Motion, an object at rest will stay at rest unless:

• It is in a vacuum

• It is acted upon by an unbalanced force

• It is moving at a constant speed

Which of the following is NOT part of the electromagnetic spectrum?

• Sound waves

• X-rays

• Ultraviolet light

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What is the wavelength of a transverse wave?

• The distance between two consecutive crests or troughs

• The height of the wave

• The speed of the wave

Tags

NGSS.HS-PS4-1

Which of the following is an example of a compound?

• Oxygen

• Water

• Hydrogen

Tags

NGSS.MS-PS1-1

What is adhesion in terms of water properties?

• The ability of water to stick to itself

• The ability of water to stick to other substances

• The ability of water to evaporate