best thing of this year i like science lab because it was fun and interesting. the best lab i like fish lab . i hope next year I have to get higher score in science exam of kru gary
Wednesday, 8 February 2017
Sunday, 8 January 2017
effect of gravity on speed
Gravity provides a constant acceleration (force) on an object. The effect is changed by using ramps at different angles. In this lab, you will find the optimal angle to maximize acceleration on a ball bearing so it travels the farthest and/or the fastest. Friction is the opposing force created by the surface interactions. Whenever something rolls due to a force, friction will oppose this force and slow it down.
1.Describe how the ball rolls off the ramp at each height—discuss the effect of bouncing or other factors.
from result of lab i think ball in bouncing high when it fall from higher
2.Discuss what is the fastest speed reached and any factors that could improve this.
i think if it have medeim high ramp it will be go fastest because gravity it make sense of high
3. Does the ball travel in a straight line, why or why not?
no some time ball is not go in straight line because the floor is not smooth