Projectile Motion Vocab
An object shot through the air
A projectile
An object in motion tends to...
Stay in motion
The distance around a circular object is it's
Circumference
Centripetal Force points to the...
center of path of motion
The force that acts on every object by pulling them closer to earth.
Gravity
What is the path a projectile takes called?
The trajectory
A projectile is shot at 20 degrees. What other angle would give you the same distance.
70 degrees
Circular motion occurring at a constant speed is called
Uniform Circular Motion
Objects that have circular motion move in a ....
Circular Path
A force that acts in the opposite direction of a moving object when the surface of an object touches another surface.
Friction force
The sum of two or more component vectors
Resultant
Vertical motion changes due to . . .
gravity
An inward force that keeps an object moving in a circular motion.
Centripetal force
Two cars go around a curve. If one is moving twice as fast, which car would be more likely to go off the road?
The faster one
A force developed in a rope, string, or cable when stretched under an applied force.
Tension force
A quantity that can be completely described by magnitude only
Scalar quantity
How far the object goes is called?
Range
The component of motion along the edge of a circle measured at any arbitrary instant.
Tangential Velocity
An ice skater is spinning in a circle with her arms out. What would you expect to happen to her speed if she brought her arms in. Why is this the case?
She speeds up because her radius is smaller
A force that acts in the opposite direction as gravity by pushing up on objects.
Normal force
The force that is added to make the net force zero
Equilibrant
The horizontal motion of a projectile can be explained by the law of...
inertia
Acceleration pointing to the center of the path
Centripetal acceleration
You are spinning a ball on a string around you when the string suddenly snaps. In what direction would the ball go?
In the direction it was going
A force acting opposite to the relative motion of any object moving with respect to a surrounding fluid.
Drag force