What is it?
seat
track
a safety bar
roller coaster
What is it?
a basketball court
a tennis court
a punching ball
a tetherball court
What is it?
a tetherball
a pole
a yoyo
a basketball
What are they?
wheel
a safety bar
brakes
What is it?
roller coaster
a carousel
an orbiter
What kind of force allows the roller coaster to keep it moving along a circular path?
centripetal force
friction force
inertia
This hill is __________.
steep
flat
What force is this?
friction force
centripetal force
inertia
What is it?
upside down
upright
backwards
sideways
Children love riding the __________ at amusement parks
carousel
the roller coaster
orbiter
He's riding down the _____ hill.
low
flat
steep
If the car stops quickly, the _________ makes your body want to continue moving.
friction
centripetal
inertia
The _______________ force keeps the roller coaster moving in a circle.
friction
centripetal
inertia
The _______ keeps you in your seat.
string
safety bar
seatbelt
rope
He thinks ______ houses look cool.
upside down
sideways
upright
We use the _____ to make the bicycle stop.
brakes
our feet
handle bar
