Exploring Experimental Design with Toy Cars

The video tutorial explains how to conduct a simple experimental investigation by changing one variable, measuring another, and keeping all other factors constant. The experiment involves toy cars, ramps, and metal washers to determine how the mass of the cars affects the distance they roll. The teacher emphasizes the importance of identifying independent and dependent variables and maintaining constants to ensure accurate results. The video concludes with a discussion on the experiment's purpose and encourages students to engage in similar investigations.

What is the primary focus of a simple experimental investigation?

• Measuring multiple outcomes

• Keeping all variables constant

• Changing one variable and measuring one outcome

• Changing multiple variables

Which materials were used in the experiment described?

• Toy cars, simple ramps, and metal washers

• Toy cars, complex ramps, and plastic washers

• Real cars, simple ramps, and metal washers

• Toy cars, simple ramps, and plastic washers

What was the mass of the metal washers used in the experiment?

• 200 grams

• 150 grams

• 100 grams

• 50 grams

What question were students asked to discuss?

• The height of the ramps

• The mass of the toy cars

• What the experiment was designed to determine

• How to build a ramp

In the experiment, what was the independent variable?

• The type of toy car

• The length of the ramp

• The height of the ramp

• The mass of the car

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

What tool was used to measure the distance the cars rolled?

• A meter stick

• A ruler

• A scale

• A stopwatch

What was kept constant in the experiment?

• The type of toy cars, tracks, meter sticks, and ramp height

• The time of day

• The distance rolled

• The mass of the car

Tags

NGSS.MS-PS2-2

What was the purpose of the investigation?

• To determine how the mass of toy cars affects the distance they roll

• To determine how the length of the ramp affects the distance rolled

• To determine how the height of the ramp affects the speed of the cars

• To determine how the type of toy car affects the distance rolled

Tags

NGSS.MS-PS2-2

What conclusion can be drawn from the experiment?

• The mass of the car does not affect the distance rolled

• The type of ramp affects the distance rolled

• Heavier cars roll a longer distance

• Heavier cars roll a shorter distance

Tags

NGSS.MS-PS2-2