Physical Science Milestone Review

Compare and contrast mixtures and compounds. Which statement is true about mixtures and compounds?

• Both mixtures and compounds are the same throughout

• Mixtures and compounds are made of two or more elements in a definite proportion

• mixtures must be separated by chemical methods and compounds by physical methods

• mixtures contain two or more elements physically combined and compounds contain two or more elements chemically combined

All of the substances on the periodic table are classified as elements because they

• are pure substances

• are composed of atoms

• cannot be broken down into other substances

• cannot be dissolved in water or other liquids

Which of the following is an example of kinetic energy?

• a child jumping rope

• a swimmer ready to dive

• a stuffed toy lying on a table

• firewood stacked in a fireplace

Tags

NGSS.MS-PS3-1

A pitcher throws a baseball towards the catcher and batter. Which of these has MOSTLY kinetic energy?

• the pitcher

• the ball

• the batter

• the catcher

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

On a cold, winter day, Sheena rubs her hands together. Stored chemical energy is transformed into mechanical energy. Due to the Law of Conservation of Energy some of the energy is also transformed into...

• heat energy

• light energy

• solar energy

• kinetic energy

Tags

NGSS.MS-PS3-5

What must happen to an object in order to accelerate it?

• a net force must be applied

• some weight must be removed

• its frictional coefficient must be reduced

• it must contain momentum

Tags

NGSS.MS-PS2-2

This graph shows the velocity of a car. Which statement BEST explains how the car is moving?

• velocity is increasing, so the car is accelerating

• velocity is decreasing, so the car is accelerating

• velocity is increasing, so the car is not accelerating

• velocity is decreasing, so the car is not accelerating

Tags

NGSS.MS-PS3-1

Jeff was riding in a car. Which change demonstrates the GREATEST effort of inertia?

• the car makes a sudden stop

• the car slows down gradually

• the car changes into another lane

• the car runs out of gas and rolls to a stop

Manuel is coasting on a bike. Because he is not pedaling, his bike will come to a stop. Which of these will cause his bike to stop

• an increase of kinetic energy

• Earth's magnetic field

• the property of inertia

• the force of friction

Tags

NGSS.MS-PS2-2

What is happening at C?

• Stationary

• Accelerating

• Fast steady speed; moving away from the starting position

• Slower steady speed; moving away from the starting position

Tags

NGSS.MS-PS3-1