Science NM ASR

This graph represents a wave with four units of energy at a certain frequency. Draw a graph that represents a wave with four times greater energy but the same frequency. Be sure to include a title, axes scales, and axes labels.

Tags

NGSS.MS-PS4-1

A meteorologist made these observations on one day:

• In the morning, an ocean wave hit a shoreline every 15 seconds.

• In the afternoon, an ocean wave hit the shoreline every 30 seconds.

Identify whether the ocean waves transferred more or less energy in the morning than in the afternoon.

• The ocean waves transferred more energy in the morning than in the afternoon.

• The ocean waves transferred more energy in the Afternoon than in the morning.

• The ocean waves transferred the same amount of energy in the morning as in the afternoon.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS4-1

A meteorologist made these observations on one day:

• In the morning, an ocean wave hit a shoreline every 15 seconds.

• In the afternoon, an ocean wave hit the shoreline every 30 seconds.

Identify how many times more or less energy was transferred in the morning compared to the afternoon. Explain your reasoning.

• The morning and afternoon ocean waves carried the same energy, because the frequency of the ocean waves was two times greater in the morning and in the afternoon. The amount of energy in a wave is proportional to its frequency.

• The morning ocean waves carried two times more energy than the afternoon ocean waves did, because the frequency of the ocean waves was two times greater in the morning than in the afternoon. The amount of energy in a wave is proportional to its frequency.

• The afternoon ocean waves carried two times more energy than the morning ocean waves did, because the frequency of the ocean waves was two times greater in the afternoon than in the morning. The amount of energy in a wave is proportional to its frequency.

Tags

NGSS.MS-PS4-1

According to the Wall Street Journal, Americans use 100 billion plastic shopping bags annually. The chemicals that make up most of these bags come from petroleum. Many people argue that because the petroleum used to make plastic shopping bags is a nonrenewable resource, it is better to use reusable cotton cloth bags for shopping. Other people argue that using plastic shopping bags is better for the environment.

Which claim would best support the position of the supporters of using plastic shopping bags

• A single plastic shopping bag needs 10 to 100 years to break down in a landfill.

• Plastic shopping bags provide an inexpensive and convenient source of packaging for stores.

• The manufacture of cloth shopping bags provides jobs and helps the economies of several different countries.

• Producing a reusable cloth shopping bag requires 173 times as much energy as producing a plastic shopping bag.

Tags

NGSS.MS-ESS3-4

Which model best represents a change that results from adding thermal energy to a substance in a jar?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A student drew this molecular model to represent liquid water at 10°C.

How should the student change the model to best represent the water at 20°C?

• Show the water molecules packed more tightly together.

• Show some of the water molecules forming chemical bonds with each other.

• Show some of the chemical bonds in the water molecules breaking.

• Show the water molecules with longer arrows to represent an increase in motion.

Tags

NGSS.MS-PS1-4

A student heats 25 mL of water from 20°C to 96°C in a glass beaker. The model represents the motion of the water molecules during heating.  

Explain why some of the water molecules shown in the model have longer arrows than other water molecules.

Tags

NGSS.MS-PS1-4

A student heats 25 mL of water from 20°C to 96°C in a glass beaker. The model represents the motion of the water molecules during heating.  

Describe what will eventually happen to the water level in the beaker. Explain your reasoning.

Tags

NGSS.MS-PS1-4

A chemical reaction between two molecules of hydrogen gas (H2) and one molecule of oxygen gas (O2) forms two molecules of water (H2O). Caitlin makes a model to represent this reaction. In her model, gray circles represent hydrogen atoms and white circles represent oxygen atoms, as shown.

Caitlin’s model has an error. What can Caitlin do to correct her model?

• Erase a hydrogen atom from the reactant molecule that has two hydrogen atoms.

• Add another hydrogen atom to the product molecule that has one hydrogen atom.

• Change the reactants to three molecules of one hydrogen atom and one oxygen atom.

• Change the product to one molecule of four hydrogen atoms and two oxygen atoms.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

A kerosene lantern is a lighting device. It uses a petroleum product called kerosene as fuel. The kerosene is held in the base of the lantern, and a cloth wick soaks up the kerosene. Air can flow into the lantern through holes in the device. The diagram shows a kerosene lantern.

When the wick is lit, the kerosene in the wick undergoes a chemical reaction with oxygen in the air to release energy in the form of light.

Which change to the device would increase the amount of time the lantern provides light?

• Change the shape of the flame to give off more light.

• Increase the size of the air holes to allow more air flow

• Increase the size of the base to hold more kerosene.

• Change the material of the wick to soak up more kerosene.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2