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Anytime an object’s velocity is changing, it is __________________.
ACCELERATING
If an object is slowing down, its acceleration vector is in the __________ direction as the velocity vector.
OPPOSITE
An object with constant _____________________ is not accelerating.
VELOCITY
A horizontal line on a velocity-time graph indicates constant ____________.
VELOCITY
Acceleration can occur when there is a change in the ___________ and/or the __________ of motion.
SPEED ; DIRECTION
When the velocity and acceleration vectors are in the same direction, the object is:
SPEEDING UP
A car enters a freeway with a speed of 6.5 m/s and accelerates to a speed of 24 m/s in 3.5 minutes. What is the car’s average acceleration?
0.08 m/s^2
A free-fall ride at an amusement park starts at rest and is in free fall.
What is the velocity of the ride after 3.0 seconds?
29 m/s
The gravitational force experienced by an object is known as:
WEIGHT
Emma walks to school at a speed of 3 miles per hour. If it takes her 20 minutes to walk from home to school, how many miles away is the school from her house?
1 mile
What is the speed of a 5 kg object falling to the bottom of a 5 meter tall hill?
10 m/s
How many significant digits are in the value 530,405,000?
6
John jogs north from his house, for exactly 5.0 min at an average speed of 8.0 km/h. What distance did John jogged during this time interval? Answer must have the correct number of significant figures.
6.7 x 10^-1 km
What does the magnitude of a vector represent?
Its size.
The slope of a position-time graph of an object gives the ___________ of the object.
velocity
True or False: Speed is a scalar quantity.
True
