A) gravitation B) work C) force D) magnetism E) friction
A) friction B) magnetism C) work D) gravitation E) force
A) force B) magnetism C) gravitation D) friction E) work
A) unbalanced forces B) work C) balanced forces D) force E) magnetism
A) work B) net force C) power D) gravitation E) force
A) power B) force C) friction D) work E) net force
A) power B) friction C) unbalanced forces D) balanced forces E) work
A) friction B) gravity C) newton D) magnetism
A) a nearby star acts on it B) an outside force acts on it C) it is placed on a flat surface D) it continues in a straight line
A) a movement in all directions B) a force sending it backward C) an equal and opposite reaction D) a greater force pushing on it
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) The movement of objects on Earth and in space C) how frame of reference influences movement D) the relationship between the four basic elements
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) friction can be overcome for all objects D) the ground pushes against your feet when you run
A) inertia B) law of universal gravitation C) reaction force D) orbit
A) reaction force B) inertia C) Law of Gravitation D) orbit E) action force
A) orbit B) action force C) Reaction force D) inertia
A) speed B) velocity C) position D) acceleration E) momentum
A) the speed of that object B) momentum of that object C) velocity of that object D) position of that object E) acceleration of that object
A) velocity B) acceleration C) speed D) position E) momentum
A) momentum B) position C) speed D) velocity E) acceleration
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 pulley and a screw B) a wedge and a pulley C) A screw and a wedge D) a lever and a wedge
A) a machine B) friction C) a magnet D) speed
A) a machine B) a force C) a power D) a current
A) work B) friction C) magnetism D) force E) power |