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