8th Grade Physical Science Mid-Term

A student runs a distance of 2 meters in 15 seconds. What is his speed?

• 13 m/s

• .133 m/s

• 133 m/s

• 13.30 m/s

Tags

NGSS.MS-PS3-1

Fill in the blank: kilo- , hecto-, deca-, base, _____ , deci-, milli-

• octo-
• centi-
• cento-
• mega-

What is the SI unit for length

• m
• s
• kg
• ampere

Which variable in an experiment does a researcher manipulate?

• Dependent variable
• independent variable
• controls

Roller coasters use potential and kinetic energy to move carts around the track. Which selection below organizes the points of potential energy from GREATEST to LEAST?

• 6,4,1
• 1,4,6
• 2,3,5
• 5,3,2

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

Potential energy refers to objects that have ________________________ .

• changing chemically
• stored energy
• in motion
• changing electrically

Tags

NGSS.MS-PS3-2

If a mixture is evenly mixed it is said to be

• chemically bonded.

• homogeneous.

• a compound.

• heterogeneous.

Which type of matter consists of two or more substances that are chemically combined?

• atoms

• elements

• mixtures

• compounds

Tags

NGSS.MS-PS1-5

Matter is defined as anything that

• can be weighed.

• can be seen and touched.

• has mass and takes up space.

• contains kinetic or potential energy.

Tags

NGSS.MS-PS1-5

Compounds and elements are

• pure substances.

• dense.

• always solid.

• mixtures.