What type of forces is the boy most likely applying?

• friction

• gravity

• pull

• push

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NGSS.MS-PS2-1

In the picture above, the magnet is pick up iron filings. This is an example of _________.

• a noncontact force

• a contact force

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NGSS.MS-PS2-5

This picture is showing _________.

• a balanced force

• an unbalanced force

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NGSS.MS-PS2-2

An icy road would have ________ friction.

• more

• less

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NGSS.MS-PS2-2

___________________________ force is the pulling and pushing forces of magnets.

• Magnetic

• Light

• Air

• Water

A ______________ is exerted when a spring is compressed or stretched.

• Gravity

• Elastic spring force

• electrical energy

• sound energy

When like poles of two magnets face each other, they _____________________ each other. This is a pushing force.

• attract

• repel

• stay unaffected from

• no movement

When unlike poles of two magnets face each other, they _____________________ each other. This is a pulling force.

• attract

• repel

• remain unmoved

• no affect

Aeroplanes and animals such as birds have ___________________ shapes that reduce the air resistance they face while in flight.

• square

• streamlined

• circular

• rectangular

____________________ is a force that causes moving objects to slow down between any two surfaces in contact.

• Friction

• Gravity

• Slip

• Crane