Forces

Open Ended

In the video, How does he do it?

Please answer in complete sentences about what you saw.

Multiple Choice

Forces are...

• begin when a charged particle starts moving causing the field around it to vibrate as well

• disturbances that transmit energy through matter

• any influence that causes an object to move or change it's speed

Multiple Choice

How is force measured?

• Hertz

• Newtons

• Velocity

• Meters

Multiple Choice

Forces have a direction in which they move.

• True

• False

Multiple Choice

Are equal in size but opposite in direction

• Force

• Balanced

• Unbalanced

• Motion

Multiple Choice

Are NOT equal in size or are NOT opposite in direction

• Unbalanced

• Balanced

• Zero

• Gravity

Multiple Choice

Balanced forces cause a change in motion.

• True

• False

Multiple Choice

Unbalanced forces do cause a change in motion.

• True

• False

Open Ended

What is net force?

Open Ended

If forces working in opposite directions are NOT equal, the Net Force has:

Multiple Choice

What is not a type of friction?

• Rolling

• Pushing

• Static

• Fluid

• Sliding

Open Ended

Friction is...

Multiple Select

What is a type of contact force?

• Rolling Friction

• Static Friction

• Fluid Friction

• Sliding Friction

Multiple Choice

What is not a type of non-contact forces?

• Gravitational

• Electrical

• Magnetic

• Tension

Multiple Choice

Gravitational force is exerted between most of the matter in the universe.

• True

• False

Multiple Choice

A push or pull on an object is:

• a force

• inertia

• its weight

Multiple Choice

Forces can change the:

• slow down or speed up objects only

• speed, direction or shape of an object

• movement of objects but only if they were already in motion

Multiple Choice

Balanced forces act on objects that are:

• stationary

• in motion

• rising or falling

Multiple Choice

An example of an unbalanced action is:

• a boat floating on still water

• a person sitting in a chair

• a rising balloon

Multiple Choice

Friction acts:

• only when an object is in motion

• whether an object is moving or not

• on stationary objects only

Multiple Choice

An example of sliding friction is:

• writing in pencil

• moving a refrigerator with a rolling trolley

• a person sitting on a chair

Poll

How confident do you feel about forces?

• Great - Forces are cool

• Okay - I kinda get forces but need more time

• Horrible - What is a force?