Hewitt-Drew-it! PHYSICS 37.Centripetal Force

What does centripetal mean?

• center seeking (towards the center)

• center fleeing (away from the center

The centripetal force here depends on what three things?

Since speed is squared, if you double the speed of the object you need ____ the force to keep the object moving in a circle.

• double

• half

• quadruple

What is v²/r the equation for?

• acceleration

• speed

• radius

Why is an object moving in a circle at a constant speed accelerating?

• The direction of the object is always changing.

• There is no unbalanced force acting on the object.

What is causing the centripetal force on the can?

• n

• g

• f

• T

What direction will the can move in if the string breaks?

• In a straight line tangent to the edge of the circle.

• Straight outward.

• Towards the center of the circle.

The velocity of the can, moving in a circle is called what?

What is the centripetal force acting on the car?

• f

• g

• T

• n

What is the centripetal force on the car on the frictionless, banked roadway?

• f

• T

• n_x

• g