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