Science Ohio

One bar magnet sits on a table, and a rubber band suspends another magnet above it. In the view on the left, the upper magnet is held in place and cannot move. In the view on the right, the upper magnet has been released. How did the potential energy change when the upper magnet was released?

• Magnetic, elastic and gravitational potential energy increased.

• Magnetic, elastic and gravitational potential energy decreased.

• Magnetic and elastic potential energy increased, and gravitational potential energy decreased.

• Magnetic and gravitational potential energy decreased, and elastic potential energy increased.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-5

NGSS.MS-PS3-2

Instruments located around Earth record seismic wave activity during an earthquake. The epicenter of the earthquake and locations of the four instrument stations around the Earth are shown. Which stations will record fewer waves than the others?

• Stations 1 and 4

• Stations 2 and 3

• Stations 3 and 4

• Stations 1 and 2

Tags

NGSS.MS-ESS3-2

Instruments located around Earth record seismic wave activity during an earthquake. The epicenter of the earthquake and locations of the four instrument stations around the Earth are shown. Select two statements that explain fewer waves recorded at some stations.

• Part of the Earth's interior bent some of the waves.

• Different materials in Earth reflect some of the waves.

• Some waves are blocked by water on the Earth's surface.

• Weather events near the stations can prevent waves from being recorded.

Tags

NGSS.MS-PS4-2

A farmer grows flowering bushes. The bushes have red, white, or red and white flowers. Based on the information given what would the genotype for a red and white flower be?

• wr

• Wr

• WR

• wR

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

As magma rises from the mid-ocean ridge, it cools and solidifies. As this magma solidifies, some of the minerals align with Earth's magnetic field. Every few million years, Earth's magnetic field reverses. This reversal is recorded in the magma that solidified after leaving the mid-ocean ridge. In the picture, these magnetic reversals are indicated by dark and light bands. How can scientists tell when the reversals of the magnetic field occurred?

• by measuring the thickness of the different bands of the oceanic crust

• by measuring the distance between the mid-ocean ridge and the ocean floor band

• by measuring the amount of minerals that aligned to Earth's magnetic field in the different bands

• by measuring the strength of Earth's magnetic field recorded in the solidified magma of oceanic crust

Tags

NGSS.HS-ESS1-5

The diagram represents a convection current in the Earth's mantle. Descriptions of the events at each of the positions are shown. Which answer has the descriptions match to the correct numbers?

• 1- cooling of warmer material

  2- movement of denser material

  3- heating of cooler material

  4- movement of less dense material

• 1-heating of cooler material

  2-movement of less dense material

  3-cooling of warmer material

  4-movement of denser material

• 1-movement of denser material

  2-cooling of warmer material

  3-movement of less dense material

  4-heating of cooler material

• 1-movement of less dense material

  2-heating of cooler material

  3-movement of denser material

  4-cooling of warmer material

Tags

NGSS.MS-ESS2-1

An environmental change occurs, causing a change in the color of snails present in an ecosystem. The graph shows the color distribution in a snail population at two different times. Select the four possible explanations for the results shown in the graph.

• Snails with the lighter coloration moved into another ecosystem to survive.

• Snails with darker coloration left the ecosystem.

• Predators could more easily catch lighter-colored snails.

• The lighter-colored snails had few offspring to pass the trait along.

• The darker coloration was an existing trait in the original population.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Horizontal forces act on two boxes, initially at rest, as shown. The magnitude and direction of horizontal forces are also shown. What happens to box X and box Y as a result of the forces?

• Box X starts moving, speeding up, Box Y remains at rest.

• Box X starts moving at a constant speed, and Box Y remains at rest.

• Box X starts moving at a constant speed, and Box Y starts moving, speeding up.

• Box X starts moving, speeding up, Box Y starts moving at a constant speed.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A car and two buses are driving on a highway. The blue arrows represent the direction and magnitude of each vehicle's motion relative the the ground. Select the answer that correctly shows the relative direction and magnitude of each vehicle's motion from the reference point of the car.

• 
• 
• 
• 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What are two sources of thermal energy in the Earth's interior?

• solar heating and gravity

• combustion and solar heating

• gravity and radioactive decay

• radioactive decay and combustion