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Science Review
Ms. Marzulos class
Question | Answer |
---|---|
When two forces act in opposite directions on an object what is the net force equal to? | The difference between the two forces. (subtract) |
If you pull a rope with 20N to the left and 10N to the right, which way will the rope go? | left |
A hockey puck slides along an icy surface. What makes it slow down? | It rubs against the ice. |
Gravitational attraction depends upon the _____ and _____ of the objects. | distance and mass |
An apple appears red because the apple ____. | absorbs all colors except red |
The normal is a line that is ____ to the surface the wave hits. | perpendicular |
The greater the change in speed, the ____________ the waves will bend. | more |
According to the Law of Reflection, the angle the incoming wave makes to the normal of the surface is ________ the angle of the outgoing wave. | less than |
What is the word that describes the tendency of objects to resist any change in their motion? | inertia |
What is the average speed of an object traveling 480 miles in 6 hours? | 80mph |
Bobby rides his bike at 3mph for 2 miles, how long did it take him? | 0.67hr |