5.6D

A student designs an experiment to test the force of 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 a volume of each sphere before the sphere is launched.

• A beaker to collect the spheres after they have been 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-PS2-2

NGSS.MS-PS2-1

A student designs an experiment to test the effect of the width of a piece of 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 above. What should the student do to improve this experiment?

• Use blocks of equal mass on the four pieces of elastic

• Use blocks with enough mass to cause the four pieces of elastic to break

• Use more than four pieces of elastic and four blocks

• Use four pieces of elastic with different lengths but the same width

Tags

NGSS.HS-PS2-1

The 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. Why is the depth of the dent different in each trial?

• The size of the ball changes

• The material of the ball changes

• The mass of the ball when it hits the clay changes

• The force of the ball when it hits the clay changes

Tags

NGSS.MS-PS3-5

A polar bear slides down an ice covered hill. As he slides, he slows down. Eventually he comes to a stop. What force  acts on an object to slow or stop its motion?

• Speed
• Friction
• Gravity
• Direction

Tags

NGSS.MS-PS2-2

Which experiment listed below will best determine how friction affects the speed of a rolling object?

• Roll 3 objects of various sizes across the floor.
• Roll 3 objects of equal size from various heights across the floor.
• Roll 3 objects of equal size across 3 different types of surfaces.
• Roll 3 objects of equal size from equal heights across the floor.

Tags

NGSS.MS-PS2-2

When designing an experiment, why is it important to test only one variable?

• Testing one variable explains what  caused the change once data has been gathered.
• Testing one variable collects inaccurate data and repeats the investigation more than necessary.
• Testing one variable decreases the reliability of the investigation.
• It is not necessary to test only one variable.

Tags

NGSS.3-5-ETS1-3

When conducting an experiment, in order to get reliable results, it is important to:

• Disregard results that do not match your hypothesis
• Test many different variables at the same time
• Test all forces at the same time
• Repeat the investigation several times

Tags

NGSS.3-5-ETS1-3

A boy applies a pushing force on a ball thrown into the air. What applies a pulling force on the ball at the same time?

• Gravity
• The height of the boy
• Friction
• The mass of the ball

Tags

NGSS.3-PS2-1

NGSS.5-PS2-1

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