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