### Velocity Acceleration & Angle – Physics

This quiz covers velocity, acceleration and angle of physics.

WHICH PART OF A PROJECTILES VELOCITY DOES NOT CHANGE?

horizontal falix…no force pushing it back

WHAT IS VELOCITY AND ACCELERATION OF A BALL AT THE TOP OF IT’S PATH AS IT IS THROWN IN THE AIR?

9.81 m/s2 acceleration and 0 vertical velocity

TRAJECTORY

the path a projectile takes while in flight. the white line behind the jet.

RESULTANT

the diagonal that has two perpendicular as its sides.

COMPONENT

the two vectors that are replaced by a resultant vector.

EQUATION FOR HORIZONTAL COMPONENT

d=vt

EQUATION FOR VERTICAL COMPONENT

d=1/2 gt 2 vf=vo plus at

CAN VECTORS BE ADDED OR SUBTRACTED ALGEBRAICALLY?

ONLY if they are going in the EXACT same or EXACT opposite directions

EXAMPLES OF SCALAR QUANTITIES:

speed, time, mass

EXAMPLES OF VECTOR QUANTITIES:

velocity, acceleration, force

DRAW A VECTOR TO SCALE:

smaller representation of actual items

ARE THE HORIZONTAL AND VERTICAL COMPONENTS OF A PROJECTILE THE SAME?

no completely separate

WHAT ANGLE DO YOU SHOOT A BULLET TO GET MAXIMUM RANGE?

45

WHAT ANGLE WOULD YOU GET THE SAME RANGE (DISTANCE) OUT OF WHEN YOU SHOOT A BULLET?

complementary angles: 30/60, 40/50, 10/80

WHAT KINDS OF OBJECTS ARE PROJECTILES?

ball falling off table, cannonball being shot, satellite, baseball being hit…

WHAT IS THE VELOCITY OF A PLANE THAT IS TRAVELING AT 250m/s IF A 20m/s wind is hitting the plane at a right angle?

WHAT ARE THE HOR AND VERT COMPONENT VECTORS OF A BALL THAT HAS BEEN THROWN 40 DEGREE ANGLE TO THE HORIZONTAL AT 15 m/s?

SCALAR

quantity that is completely discribed by MAGNITUDE only

VECTOR

can only be described completely by stating both MAGNITUDE and DIRECTION

PROJECTILE

any object that MOVES THROUGH AIR or THROUGH SPACE acted only by GRAVITY and AIR RESISTANCE.

A CANNONBALL IS FIRED PERFECTLY HORIZONTALLY AT 70M/S OFF OF A CLIFF THAT IS 30M HIGH. HOW LONG DOES IT TAKE FOR IT TO LAND? HOW FAR DOWN RANGE (DISTANCE) DOES IT GO?

IF A CANNONBALL IS FIRED AT A 40 DEGREE ANGLE ABOVE THE HORIZONTAL AT 70M/S, HOW LONG WILL IT BE IN THE AIR? HOW FAR WILL IT LAND DOWN RANGE?

tip to tail

placing the vectors with teh tip of one touching the tail of the other

the horizontal and vertical components of a projectile are…

completely seperate…one does not affect the other

velocity is the same as

free fall