6th Grade Science 2nd 6-Weeks 2021-2022 Test #1

6.6B A manufacturer selected a metal to use in producing a lightweight button for clothing. A metal that has a density of 2.71g/cm3 was selected. Which of the metals was selected?

• Metal 1

• Metal 2

• Metal 3

• Metal 4

Tags

NGSS.MS-PS1-2

6.6C Mineral A can scratch Mineral B, but Mineral B cannot scratch Mineral A. Mineral C can scratch Mineral A. Which of the following is true?

• Mineral C is harder than Mineral B.

• Mineral A is harder than Mineral C.

• Mineral C is softer than Mineral A.

• Mineral A is softer than Mineral B.

8.6A A leaf fell from a tree branch. The path it followed is shown in the diagram below. Which of these best describes why the leaf fell in a crooked path instead of straight down?

• Objects with irregular shapes never fall in straight lines.

• Air currents and gravity applied changing and unbalanced forces to the leaf.

• The upward force of the air on the leaf was greater than the downward force of gravity.

• Once the leaf was in motion, it continued moving in the same direction because the forces were balanced.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

8.6A Two students are working together to build a birdhouse. Student 1 applies a force of 10 N to a wooden board in order to slide it across the table to Student 2. If the force of friction resisting the student’s push is 4 N, what is the net force acting on the board?

• 4N

• 6N

• 10N

• 14N

Tags

NGSS.MS-PS2-2

6.6B A balance and a graduated cylinder are used to determine the density of a mineral sample. The sample has a mass of 14.7 g and a volume of 2.2cm3. What is the density of the mineral sample?

• 0.15 g/cm3

• 32 g/cm3

• 13 g/cms

• 6.7 g/cm3

8.6A A 1,100 kg car comes uniformly to a stop. If the vehicle is accelerating at -1.2 m/s2 , which force is closest to the net force acting on the vehicle?

• -9,600 N

• -1,300 N

• -900 N

• -94 N

Tags

NGSS.MS-PS2-2

8.6A The diagrams show forces acting on a toy car as it moves to the right. Which diagram shows the toy car that will most likely accelerate to the right based on these conditions?

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Tags

NGSS.MS-PS2-2

6.6C Which mineral property is being tested in the following diagram?

• Cleavage

• Color

• Hardness

• Streak

6.8A A bicycle rider is traveling up a hill. When the rider reaches the top of the hill, she stops to rest. Then she travels down the hill. The diagram shows the rider in the three different positions.

• When the rider is at the top of the hill, her potential energy is the greatest, and her kinetic energy is the least.

• As the rider moves up the hill, her kinetic energy increases, and her potential energy decreases.

• When the rider goes down the hill, her potential energy increases, and her kinetic energy decreases.

• As the rider reaches the bottom of the hill, her kinetic energy and her potential energy decrease.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

6.8A Four students were asked to classify the activities of the people in the picture below as examples of either potential or kinetic energy. Which student correctly classified the activities?

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Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5