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