8th Grade School-Wide Assessment #1 2024-2025

Two people are each pulling on the opposite ends of a rope. If they are pulling on the rope with equal but opposite forces, what will happen to the rope? (8.PS2.2)

• It will stay in place between the two people.

• It will move toward the right.

• It will move toward the left.

• It will fall to the ground.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which situation is explained by Newton’s first law of motion? (8.PS2.2)

• A basketball bounces upward when it is dropped on the floor.

• You can lift more mass with the same force using a longer lever.

• Even though you stop pedaling your bicycle, you keep moving forward.

• More fuel is required to accelerate a large truck than is required to accelerate a small car.

A performer pulls a tablecloth out from under a complete set of dinnerware as shown in the illustration below. (8.PS2.3)

• The inertia of the dinnerware

• The large mass of the tablecloth

• The placement of the dinnerware

• The rough material of the tablecloth

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Jeannie put her soccer ball on the ground on the side of a hill. Which force acted on the soccer ball to make it roll down the hill? (8.PS2.2)

• Gravity

• Electricity

• Friction

• Magnetism

Tags

NGSS.MS-PS2-2

Which action makes the car move forward?

• A push on the back of the car.

• A push on the front of the car.

• A push on the side of the car.

Tags

NGSS.MS-PS2-1

The illustration below shows a 2-ton elephant balancing on a tree stump. Which of the following statements must be accurate?

• The weight of the tree stump is greater than 2-tons.

• A 4-ton force on the ground spreads out in all directions.

• The tree stump is exerting a 2-ton force upward on the elephant.

• The downward force on the tree stump is 4-tons.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

NGSS.MS-PS2-4

Chang jumps rope. No matter how high he jumps, he still returns to the ground. What force pulls him back to the ground? (8.PS2.2)

• Inertia

• Gravity

• Friction

• Pressure

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Students learned that objects can exert forces on other objects without touching. (8.PS2.2) Which three investigations will provide evidence to support what they have learned?

• measuring how close a soda can must be before it rolls toward a balloon that has been rubbed on someone’s hair.

• counting the number of staples that are directly attached to a strong magnet.

• dropping a rubber ball from a distance of 1.5 meters above the classroom floor.

• placing a magnet against a jar containing a mixture of iron filings and sand.

• measuring how far a toy car travels across the floor before coming to a stop.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

NGSS.MS-PS2-3

Gravity is a force that pulls objects down toward Earth’s surface. Which two statements explain why a student standing at the top of a step stool does not move downward? (8.PS2.5)

• The student’s mass is not large enough to be affected by gravity.

• The step stool exerts a force on the student in the opposite direction of gravity.

• The student exerts an upward force on the step stool equal to the gravitational force.

• The step stool is a barrier that blocks the gravitational force.

• The step stool exerts a force on the student equal to the force gravity exerts on the student.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Susan gently pushes the tip of her finger against the eraser on her pencil and the pencil does not move. Which of the following figures best illustrates the interaction of forces between Susan’s finger and her pencil?

• A

• B

• C

• D