8 GR Winter BM 2023-2024 Review

Which option best demonstrates the role of gravity in our solar system?

• A. revolution of planets in orbits

• B. reflection of sunlight by the Moon

• C. amount of sunlight received by each planet

• D. observation of stars in the sky

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The graph shows the motion of a car with parts labeled O-S. During which parts is the car traveling at similar speeds but in opposite directions?

• parts O and P

• parts P and Q

• parts Q and R

• parts R and S

Tags

NGSS.MS-PS3-1

A student places an 800 g book on a high shelf and observes that it does not fall to the ground. The student claims that the book exerts a downward force of 7.8 N on the shelf and that an equal force acting on the book keeps it from moving. Which statement correctly evaluates the student’s claim?

• A. The student is correct because a force equal to 7.8 N is exerted on the book by Earth in a downward direction.

• B. The student is correct because a force equal to 7.8 N is exerted on the book by the shelf in an upward direction.

• C. The student is incorrect because a force of more than 7.8 N is exerted on the book by the shelf in an upward direction.

• D. The student is incorrect because a force of more than 7.8 N is exerted on the book by Earth in a downward direction.

Tags

NGSS.MS-PS2-4

Based on the table, which two organisms share the most recent common ancestry?

• cat and praying mantis

• whale and praying mantis

• whale and water boatman

• praying mantis and water boatman

Tags

NGSS.MS-LS4-2

What is the relationship between the amount of force applied to the toy car and the distance it travels?

• The distance increases with more force

• The distance decreases with more force

• The distance remains the same regardless of force

• The distance first increases then decreases with more force

Tags

NGSS.MS-PS2-2

According to Table 1, how long did it take for the toy car to hit the wooden block on the second push?

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What change did the student make to the toy car in the second part of the experiment?

• Added a weight to the car

• Changed the wheels of the car

• Painted the car a different color

• Removed a part from the car

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How does the addition of small toy animals affect the time it takes for the toy car to hit the wooden block?

• It increases the time.

• It decreases the time.

• It has no effect on the time.

• It depends on the weight of the toy animals.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which diagram shows the direction of the reaction force when the car hits the wooden block?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-1

Why does the student place the toy car at the same starting point to collect the data in Table 1?

• A) Using the same starting point changes the direction the car moves with each push.

• B) Using the same starting point changes the amount of time for the car to reach the block.

• C) Using the same starting point causes the wheels to rotate at the same speed.

• D) Using the same starting point causes the car to travel the same distance with each push.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2