Semester 1 Final Exam

A bag of groceries is sitting on the seat of a moving car.  What will happen to it if the driver of the car slams on the brakes?

• The bag of groceries will remain at rest.
• A force will push the bag of groceries toward the back of the seat.
• Friction and gravity will pull the bag of groceries down into the seat.
• The bag of groceries will slide forward off the seat as a result of inertia.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

The fan in the picture plugs into an outlet.  What kind of energy transformation takes place in the fan's motor?

• Electrical to chemical
• Thermal to electrical
• Electrical  to mechanical
• Mechanical to electrical

Tags

NGSS.MS-PS3-5

In the picture, what is the net force acting on the rope?

• 300 N to the left
• 300 N to the right
• 4700 N to the left
• 4700 N to the right

Tags

NGSS.MS-PS2-2

The position of the roller coaster at W, shown in the picture, is best described as...

• at its lowest potential energy
• at its greatest potential energy
• at its greatest kinetic energy
• none of the above

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

The graphs given here show the motion of three vehicles over time.  Which graph shows the motion of a vehicle with no acceleration?

• Graph A
• Graph B
• Graph C

The formula for calcium carbonate is CaCO₃.  How many atoms of each type of element are in one molecule of calcium carbonate?

• 1 calcium, 1 carbon, and 1 oxygen
• 1 calcium, 1 carbon, and 3 oxygen
• 1 calcium, 3 carbon, and 3 oxygen
• 3 calcium, 3 carbon, and 3 oxygen

Tags

NGSS.MS-PS1-1

Which of the following is a chemical property of a substance?

• Ability to dissolve in water
• Melting point
• Shape
• Ability to burn

What determines the atomic mass of an atom?

• The number of electrons surrounding the nucleus.
• The number of protons in the nucleus
• The number of neutrons in the nucleus
• The number of protons and neutrons in the nucleus

Tags

NGSS.MS-PS1-1

Which group on the Periodic Table is the least reactive?

• Group 1
• Group 14
• Group 17
• Group 18

The formula for a molecule of lithium nitride is LiN.  How many total atoms are in a molecule of lithium nitride?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1