Review

A wagon is pushed in a straight line. How would an increase in friction on the wagon wheels affect the wagon?

• It would cause the wagon to move faster.

• It would cause the wagon to change mass.

• It would cause the wagon to change direction.

• It would cause the wagon to slow down.

Tags

NGSS.MS-PS2-2

A runner measured the time it took him to run 5 km. What can he calculate from the distance and time measurments?

• Direction

• Mass

• Speed

• Force

Tags

NGSS.MS-PS3-1

A ball is kicked and rolls along a level field until it comes to a stop. What is most responsible for the ball coming to a stop?

• Air

• Gravity

• Mass

• Friction

Tags

NGSS.MS-PS2-2

Scientist discover an asteroid that is moving through space. What information is needed to determine the average speed of the asteroid?

• The mass and size of the asteroid.

• The distance the asteroid is from Earth.

• The direction the asteroid is moving and its distance from Earth.

• How far the asteroid has moved in 24 hours.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What causes a wagon to speed up when going down a hill?

• Gravity

• Friction

• Air Pressure

• Mass

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A student makes a partial circuit by connecting a battery with a light bulb using wires. The student then completes the circuit using different materials to check if the light bulb glows, as shown in the setup and table. Which material can be classified as an electrical conductor?

• iron paper clip

• plastic spoon

• rubber band

• strand of wool

A student conducts a scientific investigation to determine which items have densities greater than water. The student knows that if an item has a density greater than water, it will sink. The student drops four different items into a beaker of water and records the outcomes in a table. What conclusion can the student make based on the data collected?

• All of the items have densities greater than water

• Water has a greater density than all of the items

• The rock and the penny have greater densities than water

• The water is less dense than the birthday candle and the corn kernel

Tags

NGSS.MS-PS1-2

A student fills a beaker with 500 mL of water. The student drops an iron nail in the beaker followed by a piece of foam, as shown. Which choice correctly orders the materials from least to most dense?

• iron, water, foam

• water, iron, foam

• foam, iron, water

• foam, water, iron

Tags

NGSS.MS-PS1-2

The table contains information about the densities of objects and what happens when the objects are placed in water. A student has an object with a density of 1.75 g/cm³. Using the data from the table, what will happen when the object is placed in water, and why?

• The object will float because it is less dense than water

• The object will float because it is more dense than water

• The object will sink because it is less dense than water

• The object will sink because it is more dense than water

A student adds ice cubes to a bowl and places the bowl on a tabletop for 10 minutes. The student records the properties of the substance at the start and after 10 minutes in a table. Which statement best explains the state of the substance after 10 minutes?

• It is a solid because the mass did not change

• It is a gas because the temperature increases

• It is a liquid because the mass remained the same

• It is a liquid because it took the shape of the bowl

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4