Question

for an object to start moving, the force must come from
the same direction as the objects motion
the opposite direction as the objects motion
any direction
no answer text provided.

question 2
2 pts
a push or pull that can cause motion.
velocity
cause
speed
force

question 3
2 pts
which of the following is not true about friction:
friction is a force that acts in the opposite direction of motion
friction slows objects down
there is no friction on earth.
friction on carpet is greater than friction on a bare floor.

Explanation:

1. For an object to start moving, the force can come from any direction. According to Newton's laws, a net force (regardless of direction relative to initial motion) causes acceleration (start of motion if initially at rest).
2. By definition, a force is a push or pull that can cause motion. Velocity is speed with direction, cause is a general term, speed is rate of motion.
3. Friction exists on Earth. It acts opposite to motion (slows objects), and carpet (rougher) has more friction than a bare floor. The statement "There is no friction on earth" is false.

Answer:

1. ANY direction
2. force
3. There is no friction on earth.