Testing Forces

Students design an experiment to determine how much force is needed to move weights with different masses. What is the variable in the experiment?

• The force needed to move the weights

• Distance the weights move

• The mass of the weights

• The surface that the weights are moved over

Tags

NGSS.MS-PS2-2

Which type of force is occurring when a ball falls to the ground?

• Magnetism

• Gravity

• Friction

• Applied

Tags

NGSS.MS-PS2-4

Which type of force is occurring when a magnet is stuck to a refrigerator?

• Magnetism

• Gravity

• Friction

• Applied

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which type of force is occurring when a ball slows down as it rolls across carpet?

• Magnetism

• Gravity

• Friction

• Applied

Tags

NGSS.3-PS2-1

Which type of force is occurring when a tennis racket hits a ball?

• Magnetism

• Gravity

• Friction

• Applied

Tags

NGSS.MS-PS2-1

In a ________________ , all factors are kept the same except one.

• scientific method

• controlled experiment

• variable experiment

• trial

A reliable experiment achieves the same results over multiple ____________________.

• variables

• forces

• changes

• trials

Scientists gain knowledge about the world through the process of _____________________.

• reading lots of books

• doing math problems

• the scientific method

• osmosis

Tags

NGSS.MS-LS1-1

A force is _____________________.

• something hard

• a push or a pull on an object that changes its motion

• only found in gravity

• holding something steady

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Students want to conduct an experiment to see how different heights of ramps affect the speed of a car. What procedure should they include in their experiment?

• Conduct five trials using the same car on each height of ramp

• Conduct five trials using a different car on each height of ramp

• Conduct five trials applying different amounts of force on each car

• Conduct five trials using a different car on the same height ramp

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5