Which equation would we use to calculate speed?
distance / time
time / distance
distance / velocity
Reference points are objects that
slow down an object
move with the object
are completely still
speed faster than the object
the speed and direction of an object
speed
acceleration
velocity
An object in motion stays in motion until a ________ acts on it.
speed
rest
velocity
force
A car is driving 55 mph
speed
velocity
acceleration
a change in speed or direction
speed
velocity
acceleration
Motion is defined as a change in ....
speed
location
position
movement
how fast or slow an object is moving
velocity
speed
acceleration
The balloon is traveling 20 mph to the northwest
acceleration
velocity
speed
the racer slowed as he approached the turn
acceleration
velocity
speed
You look up in the sky and see a bird fly by. What is a good reference point to use to know that the bird is in motion?
clouds
an airplane
a moving car
tree
Which is NOT an example of acceleration?
changing direction
maintaining a constant speed
slowing down
speeding up
An object in motion
stays in motion
goes to sleep
speeds up
slows down
An object at rest
falls off the table
keeps moving
runs away
stays at rest
What would happen in a world without friction?
everything would stop
everything would keep moving
What would happen if you were in a car accident and not wearing your seatbelt?
Nothing would happen
You would keep moving when the car stops
You would stop when the car keeps moving