2nd 9weeks Review Test

If you wanted to test the effect of gravity on an object, which set of materials should you choose?

• battery, wires, lightbulbs
• hot plate, water, thermometer
• two different types of balls, metric ruler
• two cups, two different types of soil, water and seeds

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Ice melting is an example of a

• physical change
• chemical change
• physical property
• chemical property

Tags

NGSS.MS-PS3-5

Physical properties are

• properties that can be observed without changing the identity of the substance
• properties that describe how a substance changes into a completely different substance
• properties that we can only observe with our eyes
• properties that we need special tools to observe

Which of the following is a chemical property?

• how something tastes
• ability to explode
• ability to float in water
• size of an object

Hammering wood together to build a playhouse

• Chemical change
• Physical change

a copper penny turning greenish after a few years.

• Chemical Change
• Physical Change

Tags

NGSS.MS-PS1-2

As potential energy _____, kinetic energy _____.

• decreases/increases

• decreases/decreases

• increases/increases

• increases/decreases

Tags

NGSS.MS-PS3-4

Which of these will increase as material is heated and change temperature?

• kinetic energy of the molecules

• potential energy of the molecules

• the charge of the atoms in the molecules

• the mass of the molecules

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

NGSS.MS-PS1-4

If you had a spring that was 20 cm long, which would show the greatest potential energy?

• if you did not compress it at all

• if you compressed it 3 cm

• if you compressed it 10 cm

• if you compressed it 18 cm

Tags

NGSS.MS-PS3-2

At which point is potential energy greatest?

• W
• X
• Y
• Z

Tags

NGSS.MS-PS3-2