A) gravitation B) force C) friction D) work E) magnetism
A) force B) friction C) work D) gravitation E) magnetism
A) gravitation B) friction C) force D) work E) magnetism
A) unbalanced forces B) force C) work D) balanced forces E) magnetism
A) gravitation B) net force C) power D) work E) force
A) friction B) power C) net force D) force E) work
A) balanced forces B) friction C) unbalanced forces D) power E) work
A) newton B) gravity C) friction D) magnetism
A) a nearby star acts on it B) it is placed on a flat surface C) it continues in a straight line D) an outside force acts on it
A) a greater force pushing on it B) an equal and opposite reaction C) a movement in all directions D) a force sending it backward
A) its momentum changes B) its frame of reference changes C) Its position changes D) its mass and velocity changes
A) Why all moving objects eventually stop moving B) how frame of reference influences movement C) the relationship between the four basic elements D) The movement of objects on Earth and in space
A) friction can be overcome for all objects B) People in a car move forward in their seats when the car stops quickly C) the ground pushes against your feet when you run D) gravitational forces are stronger on Earth than on the moon or other satellites
A) reaction force B) orbit C) inertia D) law of universal gravitation
A) inertia B) orbit C) Law of Gravitation D) action force E) reaction force
A) inertia B) Reaction force C) orbit D) action force
A) velocity B) acceleration C) speed D) position E) momentum
A) acceleration of that object B) position of that object C) velocity of that object D) the speed of that object E) momentum of that object
A) velocity B) momentum C) position D) speed E) acceleration
A) speed B) momentum C) velocity D) acceleration E) position
A) a pole can be knocked down when a moving car hits it B) a spacecraft can travel in space for thousands of years C) a ball thrown into the air always falls back toward Earth D) trucks slow down when they are travelling uphill
A) a lever and a wedge B) A screw and a wedge C) a pulley and a screw D) a wedge and a pulley
A) friction B) speed C) a machine D) a magnet
A) a force B) a power C) a machine D) a current
A) work B) force C) friction D) power E) magnetism |