. In a velocity time graph, the features of the graph that represent the distance travelled between the two stations is the area under the graph.
. When are car is accelerating the force pushing it forward is larger.
. A factor that increases the braking distance is if the car is very heavy not how heavy the car is.
. The amplitude of a wave is from the equilibrium up, not from the trough to the peak.
. Make sure when drawing the ray of reflection that it is equal to the ray of incidence.
. When an angle is coming in at the critical angle, it is reflected at the surface.
