Final Practice Test

At which point(s) is the gravitation potential energy the highest?

• points B and D

• point A

• points A and E

• point C

Tags

NGSS.MS-PS3-2

Rubbing two wooden sticks together can sometimes result in a fire. What would increase the probability of a fire starting?

• Rubbing the sticks quickly

• Using wet sticks

• Using metal sticks

• Rubbing the sticks slowly

Tags

NGSS.MS-PS3-5

Which statement most accurately describes the Law of Conservation of Energy?

• All forms of energy can be classified as either potential or kinetic.

• Energy is created from the Earth and is destroyed when we use it.

• Energy can not be created or destroyed but it can change from one type to another.

• Energy should be saved (conserved) for use in the future.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A steel fork and a plastic spoon are both at the same temperature. The fork feels colder when you touch it. This is because:

• the fork has more mass than the spoon.

• steel conducts thermal energy better than plastic.

• plastic loses more thermal energy than steel.

• steel contains more thermal energy than plastic.

Tags

NGSS.MS-PS3-4

Energy from the Sun reaches the Earth through a type of energy transfer known as:

• radiation

• convection

• conduction

• absorption

What safety rules should you always follow while doing a science laboratory?

• Wear safety goggles at all times.

• All of the above.

• Wear safety goggles at all times.

• Tell your teacher immediately if a spill occurs.

Which of the following happens when the temperature of liquid water drops?

• kinetic energy stays constant

• kinetic energy increases

• kinetic energy decreases

• kinetic energy increases and then decreases

Tags

NGSS.MS-PS1-4

You must identify an unknown substance using only the information shown in the table. Which one of the following tests could help you narrow down the identity of the substance?

• Carefully bend the substance.

• Placing the substance in water.

• Observing that the substance is a solid.

• Carefully smelling the substance.

Which of the following statements is true?

• The particles in a solid are very close together and can move throughout the whole solid.

• The particles in a gas are spread far apart from each other and rarely touch.

• The particles in a solid do not move at all.

• The particles in a liquid are close together but rarely touch.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Why do scientists make models of particles in substances?

• To create artistic representations

• To visualize and explain the structure and behavior of substances

• To ignore patterns in substances

• To replace real experiments

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4