Science SBA Review

Which household appliance converts electrical energy to thermal energy?

• calculator

• gas clothes dryer

• microwave

• telephone

Answer explanation

calculator uses either a battery or solar

gas dryer converts gas to thermal energy

telephone converts electric to sound

A student filled two graduated cylinders with water and then dissolved a sugar cube into each sample. What is one assumption students could make about how the samples will be different?

• Students will assume sample 1 tastes sweeter than sample 2.

• Students will assume sample 2 will lose volume and sample 1 will not lose volume.

• Students will assume sample 2 is darker in color than sample 1.

• Students will assume sample 1 is warmer than sample 2.

Answer explanation

When adding sugar to less water, the water will taste sweeter than will more water.

Tags

NGSS.MS-PS1-2

Solutions are a type of mixture and share many similarities with other mixtures. One way that solutions may differ from other mixtures is-

• solutions are a mixture of only two substances, while mixtures can mix 3 or more substances.

• solutions are easily separated, while mixtures are not easily separated.

• solutions form new substances, while mixtures do not form new substances.

• solutions may change their properties, while mixtures keep their physical properties.

Which form of energy will be demonstrated when the woman pushes the shopping cart?

• Mechanical

• Electrical

• Light

• Thermal

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The Hudsons are putting several large black panels on one side of the roof of their house. Water will circulate from their swimming pool through the panels and back into the pool after being warmed in the panels. What source of energy is being used to heat the water?

• thermal energy from the attic

• light and thermal energy from the sun

• thermal energy from the circulation pump

• mechanical energy from the pool filters

Tags

NGSS.MS-PS3-3

Which of the four blocks shown has the least mass?

• Block A

• Block B

• Block C

• Block D

Which of the four blocks shown has the greatest mass?

• Block A

• Block B

• Block C

• Block D

Which statement is true about magnets?

• All metals are magnetic.

• Only certain metals are magnetic.

• Stronger magnets can attract all metals.

• The heavier the object, the more magnetic it is.

If you have a glass of ice water and leave it on the table over night and wake up the next day and the ice is gone. What form of energy caused the ice to melt?

• Mechanical energy

• Thermal energy

• Light energy

• Sound energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which type of energy causes the bell to ring?

• Sound energy causes the bell to ring

• Electric energy is used to ring the bell

• Sense of touch is used to make the bell ring

• Mechanical energy is used to tap the bell and produce sound

Tags

NGSS.MS-PS4-1