1. all movement is compared with a frame of reference
2. The most commonly used frame of reference is the earth
3. a change in position relative to a frame of reference is motion.
4.The rate at which an object changes position is called speed
5.Velocity is speed and motion
6.if a motorboat trtavels 25 km/hr down a river that has a velocity of 4 km/hr, what is the boat's actual velocity?- 6.2 km/hr
7.The rate of change of velocity is called acceleration.
8.A distance time-graph is a straight line for constant speed.
9.An object traveling in circular motion is constantly changing distance.
10. Momentum is mass times velocity.
2007-03-27 11:59:44 · 2 answers · asked by !¿question!? 2 in Science & Mathematics ➔ Physics
Was there a blank to fill? I'm guessing which word to change.
5. Velocity is speed and DIRECTION
6. 29 KM/HR DOWN THE RIVER
9. An object traveling in UNIFORM motion is constantly changing distance.
2007-03-27 15:01:46 · answer #1 · answered by sojsail 7 · 0⤊ 0⤋
there is a difference in speed and velocity.
2007-03-27 12:16:15 · answer #2 · answered by rajya v 1 · 0⤊ 0⤋