Force and Motion

A student puts a penny, a box of crayons, and a bag filled with books on a table. Which statement describes the gravitational force acting on the objects?

• The bag filled with books experiences the least amount of gravitational force

• The box of crayons experiences the greatest amount of gravitational force

• All of the ojects experience the same amount of gravitational force

• The penny experiences the least amount of gravitational force.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A group of students places two identical carts on a flat surface. One cart is empty and the other cart is full of blocks. The students push the carts across the surface. Each student pushes with the same force for the same amount of time. Which cart will speed up the most?

• The full cart pushed by one student

• The empty cart pushed by one student

• The empty cart pushed by two students

• The full cart pushed by two students

Tags

NGSS.MS-PS2-2

Which list shows what can happen to the motion of an object when only one force is acting on the object?

• the object speeds up, slows down, or sits at rest

• The object changes direction, speeds up, slows down.

• the object moves at a constant speed, speeds up, slows down

• the object moves at a constant speed, changes direction, speeds up

Tags

NGSS.MS-PS2-2

A student applies a constant force to the pedals of a bicycle to travel at a constant speed on a calm day. Suddenly, a strong gust of wind blows straight toward the fron of the student. Which statement describes the motion of the students on the bicycle IMMEDIATELY after the wind started to blow, if the student continues to applay the same constant force to the pedals.

• The motion remained constant

• The motion slowed down

• The motion reversed

• The motion sped up

Tags

NGSS.MS-PS2-2

Four boxes are lifted straight up from the ground to shelf. Each box has a different mass.

Box 1 - 4.5 kg

Box 2 - 10 kg

Box 3 - 3.5 kg

Box 4 - 5 kg

Which box requires the smallest force to lift if off the ground?

• Box 1

• Box 2

• Box 3

• Box 4

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A bus driving on the road during the winter drives onto an icy spot and starts to slide. A decrease in which of the following causes the bus to slide?

• gravity

• friction

• acceleration

• thrust

Tags

NGSS.MS-PS2-2

Brodi designed an experiment to study motion. He used the measured data collected about the distance a toy car traveled over time to make this graph.

• he stopped it from moving

• he put it on a steep incline

• he made it accelerate

• he slowed it down

Tags

NGSS.MS-PS3-1

Suri tapes batteriens to 3 identical toy cars to give them different masses. Then, Suri measures how far each car rolls when she launches it from the same statring point using the same stretched rubber band. The 3 toy cars are are picutred in the illustration. How will the force of the rubber band affect the cars?

• Car 3 will be the least affected by the force acting upon it.

• Car 1 will be the least affected by the force acting upon it.

• Car 1 will travel the shortest distance.

• Car 3 will travel the longest distance.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Scientists use electronic devices to collect data about birds during a migration. These data are shared on the Internet for anyone to view. A students analyzes the data and concludes one bird flies at a speed of 20 meters per second during a portion of its migration. Select the TWO types of data that the students needed to form this conclusion. (Think how find speed)

• The direction the bird flies.

• The bird's wing length.

• The bird's locations.

• The time interval between data points

• The direction of the wind.

Tags

NGSS.MS-PS3-1

Cameron pulls his little brother in a wagon. Next, Cameron tries to pull his older brother in the wagon. He cannot get the wagon moving when his older brother is in it. Explain why this happens.

• The older brother will always be at rest.

• The older brother has more mass/weight than the younger brother

• He needs to pull with more force to move his older brother.

• He needs to pull with less force to move his older brother.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4