3rd Grade Amplify Balanced Forces

Why do you think the magnet does not hold 50 pieces of paper?

• The magnet is round.

• The magnet is too weak to hold through 50 sheets of paper.

• The magnet is turned off.

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NGSS.3-PS2-3

What are these two men creating right now?

• They are creating a balanced force that will result in the couch moving.

• They are creating a pull which will result in the couch moving.

• They are creating an unbalanced force that will result in the couch moving.

• They are creating a magnetic force that will result in the couch moving.

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During an investigation a class observed that a spoon was attracted to magnets. What can they infer about the spoon?

• It is made of magnets.

• It is made of aluminum.

• It is made of iron.

• It is made of plastic.

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NGSS.MS-PS2-3

The chart below shows forces and the objects in which the forces act between. Select the object that is missing.

• any object

• earth

• the ground

• air

Tags

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Josh is getting ready to do an investigation. He want to move an object using touching forces. Which test will show that touching force moves objects.

• He could drop a feather from several height and see how fast it falls.

• He could push a toy car into a tower of wooden blocks until the objects collide.

• He could run a balloon over his shirt and hold it over his head to make his hair stand up.

• he could us a magnet to pull a stack of paper clips from one end of the table to the other.

Tags

NGSS.K-PS2-1

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____________ is the push or pull between two magnets, or the pull of a magnet on some kinds of metal.

• force

• magnetic force

• attract

• repel

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____________ is the information that helps explain something or answer a question.

• observe

• evidence

• attract

• repel

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When we ______________we use any of our five senses to gather information about something.

• explain

• balance

• repel

• observe

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A _________________ is a push or pull.

• swing

• force

• gravity

• train

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NGSS.MS-PS2-1

A ________________ force is a force that acts between two objects that are touching each other.

• non-touching

• magnet

• touching

• obsevation