FORCE AND MOTION

Unbalanced forces...

• Have equal force

• cause balance

• are unequal

• go in the same direction

A ball with a net force of 10N is rolling west. It is kicked west with the force of 25N. What is its net force now?

• 35N

• 15N

• 0N

• It does not have a net force

Which surface most likely has the least amount of friction

• Ice skating rink

• Carpeted room

• Pavement

• Sandpaper

In which situation do you want more friction?

• skiing

• a car turning around a corner

• moving a box across the floor

• going down a slide

How do I find the average speed?

• multiply the distance traveled and time

• subtract the starting distance by the final distance

• divide the distance traveled by the time

• guess

What is a force?

• A push or pull

• average speed

• the distance an object travels

• just gravity

_______ is what slows down a force

What does a horizontal line on a distance/time graph mean?

• The speed is not changing so it is constant

• a change in direction

• it is decreasing its speed

• The distance of the object is not changing, so it is at rest

What does a horizontal line mean on a speed/time graph?

• The speed is not changing, so it is constant

• The direction is changing

• The distance is not changing, so it is at rest

• The speed is decreasing

Which is true?

• The more mass an object has, the more gravity is pulling on it

• The less mass an object has, the more inertia it has

• The more mass an object has, the more friction is being applied

• The more mass an object has, the higher distance it can travel with a small force