Science Grade 6 Test

The wind transfers energy to turbines as it turns the turbine blades. What type of energy do the turbine blades have while they are spinning?

• chemical energy

• elastic energy

• kinetic energy

• light energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following does NOT state a benefit of using models to study science?

• Models can describe events that occur in nature.

• Models can represent things that are too small to see.

• Models can be made without scale measurements in mind.

• Models can be used in the classroom in order to help students understand a confusing concept.

Tags

NGSS.MS-LS2-3

NGSS.MS-PS1-1

A scientist used a model to predict the path of a hurricane. The hurricane followed a similar path but did not follow the exact path that was predicted. What is the most likely reason the model did not predict the path exactly?

• The model cannot account for how every factor may suddenly change

• The model used was too complex to be of any help in making a prediction

• Models should not be used to study weather events

• Models should not be used to study weather events

Tags

NGSS.HS-ETS1-3

NGSS.HS-ETS1-4

A snowball sits at the top of a hill. Which of the following changes will increase the kinetic energy of the snowball?

• Additional snow falls on the snowball, increasing its mass.

• The snowball is pushed and rolls down the hill, gaining speed.

• The weather warms and the snowball melts, decreasing its mass.

• The snowball is moved and now sits on a hill that is higher.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Mechanical energy is the sum of two types of energy—kinetic energy and potential energy. Which of the following is an example of an object that has kinetic energy?

• a horse running across a field

• a computer monitor sitting on a desk

• a tightly wound spring in a windup toy

• a roller coaster car just before it goes downhill

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Some students are measuring the speed of a pendulum. They are working in groups. All of the groups have a pendulum that is the same mass and a string that is the same length. The pendulum has the same starting position for all 5 groups. The groups record their results in the data table shown. PENDULUM RESULTS Group | Speed of Pendulum (in swings per minute) 1 | 50 2 | 52 3 | 50 4 | 49 5 | What will the estimated results of Group 5 most likely be?

• Their results will be about 40 swings per minute.

• Their results will be about 50 swings per minute.

• Their results will be about 60 swings per minute.

• Their results will be about 70 swings per minute.

Tags

NGSS.MS-PS3-1

At which positions of the pendulum would have the most potential energy?

• 1 and 2

• 2 and 3

• 1 and 5

• 4 and 5

Tags

NGSS.MS-PS3-2

Look closely at the bar chart below, which shows the mechanical energy of a car on a roller coaster at four different locations. Notice that the total energy, or mechanical energy, of the car on the roller coaster is always the same. What explains this observation?

• Kinetic energy is created during a roller coaster ride.

• Kinetic energy and potential energy change, but energy is neither created nor destroyed during a roller coaster ride.

• Potential energy increases but kinetic energy stays the same during a roller coaster ride.

• Potential energy is destroyed during a roller coaster ride.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A teacher plans an experiment to test the effects of ramp height on the distance a toy car travels. Each student uses the exact same materials. Why is it important that all students use the exact same materials?

• If all students use the exact same materials, everyone will get the exact same results.

• If all students use the exact same materials, the student can each test a different variable.

• If all students use the exact same materials, it will make sure the measurements are reliable.

• If all students use the exact same materials, the experiment can be repeated by others, and they can compare results.

Amber likes riding her bicycle through her neighborhood where there are lots of hills. She rides down a very steep hill, and then goes up a small hill. She doesn't need to pedal as her bicycle carries her up the small hill. How do Amber's kinetic energy and potential energy change as she goes uphill?

• Her kinetic energy and her potential energy both increase.

• Her kinetic energy and her potential energy both decrease.

• Her kinetic energy increases and her potential energy decreases.

• Her kinetic energy decreases and her potential energy increases.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5