quarterly assessment review

Check off all of the ways that you can speed up the dissolution of a solute in a solvent. (example: Dissolving salt in water)

• Add more heat

• Add ice to the solvent

• Put in larger particles of the solute

• Stir faster

• Grind up the solute into smaller particles

A cyclist travels 24 kilometers in 2 hours. What is the cyclist’s average speed?

• 10 km/h

• 12 km/h

• 15 km/h

• 24 km/h

During which time interval was Emma moving the fastest?

• 0-1 seconds

• 1-2 seconds

• 2-4 seconds

Tags

NGSS.MS-PS3-1

What was her speed during that interval?

• 80 km/h

• 40 km/h

• 200 km/h

• 0 km/h

Tags

NGSS.MS-PS3-1

What does the flat section of the graph represent?

• A constant rate

• An increasing rate

• A decreasing rate

• No change

Tags

NGSS.MS-PS3-1

A car is traveling east at a speed of 60 km/h. Another car is traveling west at a speed of 60 km/h. Which of the following statements is true about their velocities?

• Both cars have the same velocity because their speeds are equal.

• The cars have different velocities because they are moving in opposite directions.

• Velocity does not depend on direction, so the cars have the same velocity.

• Velocity is only based on acceleration, so we cannot determine it from this information.

The table below shows the distance a runner traveled over different time intervals during a race. What was the runner’s average speed for the entire race?

• 50 m/h

• 125 m/h

• 15 km/h

• 200 m/h

What is the best definition of thermal energy?

• The ability to do work or cause change in the system

• The total energy of all particles in a substance

• An energy an object possesses due to its motion

• The amount of mass an object possesses

Tags

NGSS.MS-PS1-4

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To make rock candy, you need to supersaturate water with sugar. What does that mean?

• Add sugar to the water until it can no longer dissolve

• Add heat to the solution

• Add more sugar to the solution than can dissolve in the water

• Add more water to the solution

energy is energy in motion while energy is stored energy.

• Kinetic, potential
• Heat, electricity
• Potential, kinetic

• Elastic, solar

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

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