Force and Motion

A student designs an experiment to test the force of a spring using a spring launcher and four spheres with the same diameter but with different masses. What other piece of equipment would be most useful for this experiment?

• A graduated cylinder to measure the volume of each sphere before the sphere is launched

• A beaker to collect the spheres after they are launched

• A stopwatch to measure how long it takes to load each sphere on the spring

• A meter stick to measure the height each sphere reaches after the sphere is launched

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A student uses a spring scale to pull a 50-gram block horizontally across a wood desk. Then the student pulls the block the same distance across surfaces of carpet, sandpaper, and glass. What is a reasonable conclusion to this investigation?

• More mass will require more force to pull it.

• More mass will require less force to pull it.

• Smoother surfaces will decrease the amount of force needed.

• Rougher surfaces will decrease the amount of force needed.

Tags

NGSS.MS-PS2-2

A student designs an experiment to test the force of a spring using a spring launcher and four spheres with the same diameter but with different masses. What question is being asked in this investigation?

• How does the mass of the ball affect the force needed?

• How does the diameter of the ball affect the force needed?

• How does the color of the ball affect the force needed?

• How does the height of launch affect the mass?

Tags

NGSS.MS-PS2-2

A student designs an experiment to test the force of a spring using a spring launcher and four spheres with the same diameter but with different masses. What is a reasonable conclusion to this investigation?

• More mass will require more force to launch the ball.

• More mass will require less force to launch the ball.

• Less mass will require more force to launch the ball.

• The mass will have no effect on the amount of force needed to launch the ball.

Tags

NGSS.MS-PS2-2

A student observes that the craters on the moon are different sizes. The student designs an experiment to study the formation of craters. The materials for the experiment are marbles and a pan of flour. The student makes a hypothesis that the size of the craters made on the surface of the flour will depend on the height from which the marble is dropped. Some of the steps in the student's experiment are described below. In this investigation, what will be the variable?

• Mass of the ball.

• Type of flour in the pan.

• Size of the crater.

• The height the ball is dropped.

Tags

NGSS.MS-PS2-2

Students drop the same heavy ball onto identical blocks of soft clay from different heights. For each height they measure the depth of the dent the ball makes in the clay. What question could we use this investigation to answer?

• How does the mass of the ball affect the size of the crater?

• How does the height affect the size of the crater?

• How does magnetism affect the size of the crater?

• How does the type of clay affect the size of the crater?

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

A student designs an experiment to test the effect of the width of a piece of elastic on the elastic's ability to stretch. The student selects four pieces of elastic with different widths but the same length. The student then attaches blocks with different masses to the pieces of elastic. The results of the student's experiment are shown below. Why can't we find an answer to this investigation?

• There are 2 variables - elastic width and mass.

• The elastic is too narrow.

• The masses are too heavy.

• You can find an answer using this investigation.

Tags

NGSS.MS-PS2-2

The diagrams show two trials of an experiment in which a spring scale was used to measure force. What is the difference between the two trials?

• The mass

• The surface of the table

• The angle of incline

• The type of book used

Tags

NGSS.MS-PS2-2

The diagrams show two trials of an experiment in which a spring scale was used to measure force. In the investigation, the students are testing to see if ____ has an effect on the force needed to move the book.

• Friction

• Angle of Incline

• Mass

• Density

Tags

NGSS.MS-PS2-2

Students design an experiment to determine how much force is needed to move blocks of wood of different masses across a lab table. What is the variable that should change this investigation?

• Spring Scale

• Surface of the table

• Mass of wood block

• Speed the block is moved

Tags

NGSS.MS-PS2-2