1.1

Which factor is most helpful in lowering an object with the use of a pulley?

• friction, because it makes the object move at a constant rate

• friction, because it helps speed up the object’s movement

• gravity, because it allows the object to resist any change

• gravity, because it pulls down on the object

The picture shows a person holding a book.

If the person releases the book, it will

• be pushed by friction.

• be pulled by a force.

• experience an increase in weight.

• experience magnetic attraction.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

When it is summer in the northern hemisphere, it is winter in the southern hemisphere. Why would the northern and southern hemispheres have opposite seasons?

• the tilt of the Earth on its axis

• the orbit of the Earth around the

  sun

• the combination of the Earth’s

  tilt and orbit around the sun

Tags

NGSS.MS-ESS1-1

When it is winter in the northern hemisphere, it is summer in the southern hemisphere. Why would the northern and southern hemispheres have opposite seasons?

• the combination of the Earth’s tilt and orbit around the sun

• the tilt of the Earth on its axis

• the orbit of the Earth around the sun

• the two hemispheres are able to take turns with the sun

Tags

NGSS.MS-ESS1-1

Which most likely produces clear, cool weather?

• zero air pressure

• stable air pressure

• a low pressure system

• a high pressure system

Tags

NGSS.MS-ESS2-5

Land heats up faster during the day than water does. As the beach gets warm during the day, it heats the air above it. The warm air rises and cool air from the ocean is pulled in to replace it. So, air flows from the ocean to the land. At night, the land cools faster than the ocean. What MOST likely happens to the air at the beach at night?

• The air is still.

• The air moves along the coast.

• The air flows from the ocean to the land.

• The air flows from the land to the ocean.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Which observation describes a change in climate rather than a change in weather?

• The thunderstorm dropped about three centimeters of rain today.

• The average summer temperatures have increased over the last ten years.

• The snowfall in this area was more this week than it was last week.

• The average wind speed in April was less than it was in March.

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS3-5

A student states the weather is the same as the climate. Which response BEST tells the student the difference between weather and climate?

• Weather is about the wind and the rain, but climate is about the clouds.

• Weather is the conditions in one day, but climate is the conditions over a long time

• Weather is measured with tools like thermometers, but climate is measured with tools like forecasts.

• Weather is recorded on charts, but climate is recorded on world maps.

Andy lives in the southern hemisphere. What season does he most likely experience in August?

• winter

• spring

• autumn

• summer

Tags

NGSS.MS-ESS1-1

Which has the greatest effect on the temperature of a region?

• the amount of plants it has

• the amount of rainfall it gets

• the amount of sunlight it gets

• the amount of humans it has

Tags

NGSS.MS-ESS2-6