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