Force Investigations

Students were conducting a force investigation by rolling a golf ball down a ramp made of wood with different surfaces. They noticed that the golf ball didn't roll as far down the ramp with carpet on the wood as the ramp made of just wood. What causes this to happen?

• acceleration

• magnetism

• friction

• mass

Tags

NGSS.MS-PS2-2

A spring scale is a tool used in science experiments. What does it measure?

• the amount of force needed to move an object

• the amount of mass to move an object

• how much gravity pushes on an object

• to measure the temperature of an area

Who discovered the Three Laws of Motion?

• Albert Einstein

• Neil deGrasse Tyson

• Sir Isaac Newton

• Steven Hawking

Student scientists were rolling a marble down a ramp and measuring how far it rolled. It rolled 56 centimeters. What should the students do to ensure that is the accurate distance?

• remeasure to see if that is correct

• test different size marbles and measure how far they roll

• raise the ramp to different levels and test the same marble by rolling it down

• test the same marble by letting it go in the same place several more times

Tags

NGSS.3-5-ETS1-3

NGSS.3-PS2-1

NGSS.3-PS2-2

The picture shows student scientists conducting a force investigation. The picture shows the first trial. If the students added another weight and retested it again, what would their focus question be?

• Does gravity affect force?

• Does mass affect force?

• Does friction affect force?

• Does volume affect force?

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Students conducted an investigation in which they measured the distance a toy car traveled after rolling down a ramp covered with sandpaper or wax paper. Which of these questions can the students answer by analyzing the results of their investigation?

• How does changing the height of a ramp affect the distance of toy car rolls?

• How does changing the surface of a ramp affect the distance of toy car rolls?

• How does mass affect the distance of toy car moves after rolling down a ramp?

• How does the design of a toy car affect its movement after rolling down a ramp?

Which two tools below would be most useful in testing how the mass of an object can affect the distance it moves after being pushed?

• spring scale and hot plate

• balance and meter stick

• graduated cylinder and beaker

• magnet and thermometer

Tags

NGSS.MS-PS2-2

If a student has two magnets, how might it be determined which magnet is stronger?

• measure the length and mass of both magnets

• submerge each magnet in a bowl of water

• examine each magnet to determine the north pole

• count how many paper clips each magnet can lift

Tags

NGSS.MS-PS2-3

Students conducted an investigation in which they rolled a soda can down a ramp that was 30 cm high and one that was 40 cm high. Which would most likely be their focus question?

• How does mass of a soda can affect the distance it will roll?

• How does the surface friction affect the distance a soda can will roll?

• How does ramp height affect the distance a soda can rolls?

• How does the size of a soda can affect the distance it rolls?