1.which is not a unit of force? A. dyne B. joules C. newton D. pound
2.what refers to how large or strong is the force?
A. magnitude B. line of action C. velocityof the object D. direction of the force
3.What force is always directed opposite to the motion of an object
A. friction B. gravitational C. magnetic
D. tension
4.what force pulls an object back to the earth?
A. applied B. gravitational C. magnetic
D. tension
5.which surface would be easiest for a bicycle to move
A. sand B. grass C. muddy road
D. concrete road
6.what type of force holds between two celestial bodies like the sun and earth
A. applied B. gravitational C. magnetic
D. tension