Forces & Motion Milestones Study

The graph shows the velocity of a moving train over time.

During which intervals of time was the train moving at a constant, positive velocity?

• 0 to 5 seconds; 10 to 15 seconds

• 5 to 10 seconds; 15 to 25 seconds

• 25 to 30 seconds

• 0 to 15 seconds

Tags

NGSS.MS-PS3-1

A ball is falling to the Earth. A pictorial representation is provided.

Which explanations best describes the behavior of the ball?

• The ball is floating because the forces acting on the ball are balanced

• The ball is at rest because the forces acting on the ball are balanced.

• The ball is moving at a constant velocity because the forces acting on the ball are balanced

• The ball is accelerating towards the Earth due the force of gravity.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

An unknown massive planet is in outer space. Scientists call it Planet X. A comet is passing by Planet X and its path is illustrated below.

Which claim, evidence, and reasoning best explains the path of the comet?

• The comet changes velocity due to the force of gravity acting on it.

• The comet bends toward the planet as it passes by

• The comet moves past Planet X at a constant speed.

• Forces cause objects to move.

• Forces cause objects to accelerate.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

A cart is traveling along a path. The graph of the cart’s path can be seen in the image.

During which time interval(s) is the cart moving at a constant positive velocity?

• 10-12 seconds

• 2-6 seconds and 12-14 seconds

• 14-16 seconds

• 0-2 seconds and 6-10 seconds

Tags

NGSS.MS-PS3-1

Two students are required to keep the acceleration of a block 2 m/s2 . To keep track of the data the students create a table and line graph.

Which argument below provides the best evidence for the relationship between the force and mass of an object that must remain at a constant acceleration?

• The force must increase to increase the acceleration of the block.

• The mass must decrease to increase the acceleration of the block

• The force must increase every time the mass increases to keep the block moving at a constant acceleration.

• The force must decrease every time the mass decreases to keep the acceleration moving in a positive direction.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Two students construct a table using data from a toy car.

What patterns exist based on the analysis and interpretation of the data set for the toy car?

• The greater the distance the greater the speed at a given time interval

• The less time it takes the car to travel a fixed distance leads to a greater speed.

• The more time it takes the car to travel a fixed distance leads to a greater speed.

• The speed is always either 1 or 2 meters per second due to the distance the car travels.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Two students are exploring gravitational force using an online simulation. They collect qualitative data from the simulation and construct a table.

Students then gathered information on the force of gravity from an online source. Below is their summary: “Gravity is a field force that exists between two objects with a mass that are at different distances from each other. The two factors that impact the strength of the force are the masses and the distance between the objects.”

Which claim and evidence best supports the relationship between the distance between two planets and the force of gravity? (Select Two)

• The smaller the distance between two planets, the greater the force of gravity.

• The greater the distance between two planets, the greater the force of gravity.

• The smaller the distance between two planets, the smaller the force of gravity.

• The force of gravity between two large planets has the highest ranking.

• The highest forces of gravity rankings all belong to planets that are close to each other.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Students draw a free body diagram on the car below accounting for all the forces acting on the car. The car is moving to the right.

Which of the following explanation best describes the motion of the car?

• The speed of the car is increasing to the right because the rightward force is 1000 Newtons,

• The speed of the car is decreasing because the leftward force is greater than the rightward force.

• The car is moving to the left because the leftward force is greater than the rightward force.

• The car is at rest because the upward and downward forces are equal and opposite.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Students are using a device to push a cart with masses. Students are measuring the change in velocity, acceleration, mass, and force involved in the investigation. The data table and graph below are used in the investigation.

What evidence best supports the claim?

• The acceleration of the 2 kg mass increases every time the force increases.

• The force acting on the 6 kg mass is the greatest.

• The acceleration does not show any patterns as it is equal for some of the masses.

• The force increases with each trial.

Tags

NGSS.MS-PS2-2

Students are using a device to push a cart with masses. Students are measuring the change in velocity, acceleration, mass, and force involved in the investigation. The data table and graph below are used in the investigation.

Which of the following claims is the most accurate based on the data?

• Mass and acceleration are proportional.

• Force and mass are proportional.

• Force and acceleration are inversely proportional.

• Force and acceleration are proportional.

Tags

NGSS.MS-PS2-2