Vocabulary
What term is used to describe an object's change in position?
motion
What two things are needed in order to calculate speed?
Distance & Time
What happens when a car slows down and velocity changes?
negative acceleration (deceleration)
What is the term used to measure the distance an object moves per unit of time?
Does not follow a predictable path...
Random motion
What is the space between two objects or points called?
Distance
An object that is neither speeding up nor slowing down travels at a
constant speed
Includes the speed of an object and the direction of its motion.
Velocity
What is the formula for calculating speed?
S=D/T
The trajectory of an object forms a curve...
Curvilinear motion
What is the term used for the location of an object?
position
A rate of change of the velocity of an object.
acceleration
Velocity must always indicate
direction
A truck and a car started at the same point, but an hour later, the truck had traveled 60 km, while the car had traveled 80 km. Which one's speed was greater?
The car's.
Repeats at regular intervals...
Constant speed
How far the object moves from its starting position
Displacement
The total distance an object travels divided by the time of travel
speed
On a speed-time graph, what slope direction shows deceleration
Downward slope. Negative slope
Represent the following mathematically:
A train travels across a 550-meter-long bridge, and it takes it 10 seconds to cross it completely.
Trains's Speed = 550m/10s = 55m/s
When an object rotates around a fixed point or axis...
Rotational
What is a place or object used for comparison to determine if something is in motion. Something that is stationary (not moving)
Reference point or Frame of Reference
What could be used as a good reference point?
building, road sign, tree
When velocity changes by the same amount over each time interval, the acceleration of that object is...
constant
Calculate the speed of a car that traveled 76 miles in 2 hours.
38 mph
When an object is thrown or projected into the air, it follows a parabolic trajectory due to the influence of gravity. This type of motion combines horizontal and vertical movements...
Projectile motion