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

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 force of the ball when it hits the clay changes

The material of the ball changes

The mass of the ball when it hits the clay changes

The diagrams show two trials of an experiment in which a spring scale was used to measure force. This experiment can be used to determine--- (5.6D)

how mass affects the force needed to move objects

how force affects the mass of two objects

how the fore used to pull a dictionary affects the mass of a box of marbles

how the mass of a box of marbles affects the mass of a dictionary

Students design an experiment to determine how much force is needed to move blocks of wood of different masses slowly across a lab table. Which procedure should students include in their design? (5.6D)

Conduct five trials, pulling each block of wood in the same way for each trial

Conduct five trials, using a different scale to pull each block of wood

Conduct five trials, pulling a different side of each block each time

Conduct five trials, using a different table for each trial

Jax designed an experiment of two boxes with EQUAL weights. He decided to add 50 grams to the RIGHT side to see what would happen. The LEFT side of the moved up 1 meter. What should Jax do to determine whether the force from the extra WEIGHT IS ENOUGH to move the left side of up by 1 meter?

Test by ADDING 50 grams to the RIGHT side of the pulley system in MANY trials

Test by REMOVING weight from the RIGHT side of the pulley system in THREE trials.

Test by ADDING increasing amounts of weight to the RIGHT side in MANY trials.

Test by ADDING 50 grams to the RIGHT side of the pulley system in ONE trial

The Cool Kids table designed a tabletop bumper car model to test the effects of different forces. They used several of the same toy cars to represent the bumper cars and a cardboard box to represent the bumper car arena. They used a rubber mat, a plastic folder, and paper towel to LINE THE BOTTOM OF THE BOX. Which question is this investigation most likely designed to answer?

How does the MATERIAL on the bottom of the box affect how FAR the cars will MOVE?

How does the AMOUNT of force affect how many bumper cars will GET HIT?

How does the SIZE of the car affect how much force is needed to MOVE IT?

How does the AMOUNT of force affect how long the cars will CONTINUE TO MOVE?

Robert built a ramp to determine the average distance his toy car will travel when released down the ramp. Which experiment will best test HOW FAR his toy car will travel when released down the ramp?

One that measures the distances that HIS toy car travels in MANY trials

one that measures the distances that DIFFERENT toy cars travel in MANY trials

one that measures the distances that DIFFERENT toy cars travel in TWO trials

One that measures the distances that HIS toy car travels in TWO trials

Odin wants to know the maximum distance a toy car will travel when he gives it a strong push. Which experiment below best allows Odin to determine this?

One that involves pushing the SAME toy car, with the SAME force, MANY times on the SAME surface

One that involves pushing TWO toy cars, with the SAME force, FIVE times on the SAME surface

One that involves pushing the SAME toy car, with a DIFFERENT force, MANY times on TWO different surfaces

One that involves pushing TWO different toy cars, with a DIFFERENT force, FIVE times on TWO different surfaces

Abby wants to see how high a tennis ball will bounce when she drops it from a height of 10ft. When her teacher gives her permission, Abby climbs a ladder to perform the experiment. Which experiment best tests HOW HIGH the tennis ball will bounce when released from 10ft?

drops many IDENTICAL tennis balls from 10FT, ONE at a time, and records HOW HIGH EACH ball bounces.

drops many DIFFERENT tennis balls from 10FT, ALL at the SAME time, and records which ball bounces the LOWEST.

drops many IDENTICAL tennis balls from 10 FT, ALL at the SAME time, and records which ball bounces the HIGHEST.

drops MANY different tennis balls from 10FT, ONE at a time, and records HOW HIGH EACH ball bounces.

5.2B: What are the first two steps in the scientific method?

Listen to the teacher and read directions

Experimental Design Quiz

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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.MS-PS2-2

NGSS.MS-PS3-4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Looking at the picture, what two tools would be needed to measure the effect of friction on the ball?

Hand lens and balance

Balance and spring scale

Measuring tape and stop watch

Spring scale and hand lens

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A student drops a ball from shoulder height. The ball bounces 5 times before coming to a stop. What force causes the ball to fall to the ground?

Friction

Magnetism

Position

Gravity

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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. Which question is this investigation most likely designed to answer?

How do blocks of different sizes react to force?

How do different surfaces affect the amount of force needed to move a block?

How do blocks affect spring scales?

How does the mass of a block change when it is pulled across a desk?

Tags

NGSS.MS-PS2-2

8.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Some students attach a balloon to a straw and then they tape the straw to the top of a toy car. The students inflate the balloon and release the car. The car travels 40 centimeters across the floor. What should the students do to determine whether the force of the air from a balloon is enough to push the car 40 centimeters across the the same floor in repeated trials?

Test the car several times using an identical balloon filled with different amounts of air.

Test the car several times using different-sized balloons filled with the same amount of air.

Test the car several times using an identical balloon filled with the same amount of air.

Test the car several times using different-sized balloons with different amounts of air.

Tags

NGSS.3-5-ETS1-1

NGSS.3-PS2-1

NGSS.3-PS2-2

9.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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. Which of these is most likely Step 3 in the student's experiment?

Drop the same marble from different heights into the pan of flour

Drop marbles of different masses from the same height into the pan of flour

Drop marbles of different sizes from different heights into the pan of flour

Drop a single marble one at a time into the pan of flour

10.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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-PS2-1

NGSS.MS-PS2-2

Experimental Design

42 questions

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

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

Looking at the picture, what two tools would be needed to measure the effect of friction on the ball?

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

A student drops a ball from shoulder height. The ball bounces 5 times before coming to a stop. What force causes the ball to fall to the ground?

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

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. Which question is this investigation most likely designed to answer?

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?

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