MOY 1-4 Review PT 1

On a hot summer day, your mom opens the windows of the house to cool it down. Which of these activities uses the same type of energy that your mom used to open the window?

• Riding your bike using mechanical energy

• Toasting bread in the toaster using thermal energy

• Lighting up lightbulbs using electrical energy

• Singing in a choir concert using sound energy

When making spaghetti, granny adds salt to the boiling pot of water. Which property of salt will remain the same when it forms the solution with water?

• The size of the salt crystals

• The texture of the salt

• The taste of the salt

• The shape of the salt crystals

Before her basketball game, Hudson was making some Gatorade. Which of these describes the change in the gatorade crystals as they dissolve in water?

• The crystals get in high in temperature until they melt into a liquid.

• The crystals get smaller in size until they can no longer be seen.

• The crystals are washed clean until they are clear and can not be seen.

• The crystals disappear into another dimension.

Kat's glasses help him see better through a corrective lens. How does a corrective lens help someone see better?

• Corrective lenses reflect light to make it easier to see distant objects

• Corrective lenses absorb light to make it easier to see distant objects

• Corrective lenses block light to make it easier to see distant objects

• Corrective lenses refract light to make it easier to see distant objects

How many light bulbs would turn on if a student closed switch A and C?

• 0

• 1

• 2

• 3

As she is sips her tea through a straw on a hot summer day, Arianna notices that when viewed from the side, the bottom of the straw does not line up with the top of the straw.

What causes this to happen?

• Light rays bend the straw.

• Light rays are reflected by the water.

• Light rays are refracted in the water.

• Light rays are absorbed by the straw.

Harper designed an experiment to determine which type of ball would roll the furthest on a surface. He used 3 types of balls and and 3 different surfaces, each with different texture.

What should the student do to improve the experiment?

• Use the same type of ball for each trial

• Use the same surface for each trial.

• Change the angle of the surfaces for each trial

• Use balls with different size but the same mass for each trial

Gibbs and Bailey were investigating which paper airplane design would allow the plane to fly the furthest. Which of the following would be essential in their investigation?

• Meter stick, calculator, 7 foot-tall student, 1 paper airplane

• 5 different paper airplanes with different wing span lengths

• Different surfaces for the paper airplane to land on

• Meter stick, 4 1/2 foot-tall student, a big grassy field.

Stella and Jimmy designed the circuit above. Which switches should the student close to produce light energy only?

• Switch 1, 2, and 3

• Switch 1, 2, and 4

• Switch 1 and 3

• Switch 1 and 4

Diagram shown above best shows:

• Reflection

• Absorption

• Refraction

• Convex