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