3.22

A student designs an experiment to test how the mass of toy car will affect the distance it will travel after being rolled down a ramp. The student selects two cars with different masses and two ramps with different heights. What should the student do to improve this experiment?

• Use ramps that are longer

• Use ramps that are the same height

• Use two different cars with the same mass

• Use more than two different cars and ramps

Tags

NGSS.MS-PS2-2

A student designs an experiment to test how force affects the motion of an object. The materials for the experiment are a catapult built from a tissue box that launches marshmallows. The student makes the hypothesis that the distance a marshmallow will travel depends on how far down the catapult is pushed down before launching the marshmallow. Some of the steps in the student's experiment are described below. 1. Construct the catapult. 2. 3. For each trial, measure the distance that the marshmallow traveled. Which of these is most likely Step 2 in the student's experiment?

• Shoot different sized marshmallow from the same catapult position

• Shoot a single marshmallow one time and measure the distance

• Shoot the same sized marshmallow from different catapult positions

• Shoot a single marshmallow from different catapults

Tags

NGSS.MS-PS2-2

Three students used spring scales to measure the force needed to pull three blocks made of different materials up a ramp. Students recorded the force used to pull each block in the chart below. Which of the following is the best explanation of why the blocks required different amount of force?

• The blocks all have different masses.

• The ramps were different for each block.

• The blocks were different sizes.

• There was more force on the smaller blocks.

Tags

NGSS.MS-PS2-2

A science class designed an investigation to test the effect of force on an object. They will be using a basketball, a meter stick, and three materials with different textures. This investigation can be used to determine how the --

• distance that a ball rolls on a material affects the height that the ball bounces.

• texture of a material affects the height that a ball bounces.

• height that a ball bounces affects the material the ball is made of.

• mass of a bouncing ball affects the texture of a material.

Tags

NGSS.MS-PS2-2

Force can change the ________, ________, and position of objects. Force is a ________ pull or ________ push that may or may not result in movement. ________ pulls objects to the center of the earth. ________ slows or stops motion when objects rub together. ________ is the physical property of being magnetic.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Conduct the investigation and complete the prediction, data table, and conclusion.

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

NGSS.MS-PS1-2

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.MS-ETS1-2

What forces are at play in this investigation?

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

How would you expect the same amount of force to affect the different spheres?

Tags

NGSS.MS-PS2-2

What is a force?

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4