A) gravitation B) force C) friction D) work E) magnetism
A) work B) force C) magnetism D) gravitation E) friction
A) gravitation B) work C) friction D) force E) magnetism
A) magnetism B) work C) unbalanced forces D) balanced forces E) force
A) gravitation B) power C) force D) work E) net force
A) friction B) work C) power D) net force E) force
A) unbalanced forces B) balanced forces C) friction D) power E) work
A) magnetism B) friction C) newton D) gravity
A) it continues in a straight line B) it is placed on a flat surface 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 momentum changes D) Its position 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) friction can be overcome for all objects B) the ground pushes against your feet when you run C) gravitational forces are stronger on Earth than on the moon or other satellites D) People in a car move forward in their seats when the car stops quickly
A) inertia B) law of universal gravitation C) orbit D) reaction force
A) action force B) reaction force C) orbit D) Law of Gravitation E) inertia
A) orbit B) action force C) Reaction force D) inertia
A) acceleration B) momentum C) velocity D) position E) speed
A) momentum of that object B) acceleration of that object C) the speed of that object D) position of that object E) velocity of that object
A) momentum B) velocity C) speed D) acceleration E) position
A) position B) momentum C) velocity D) acceleration E) speed
A) a pole can be knocked down when a moving car hits it B) a spacecraft can travel in space for thousands of years C) trucks slow down when they are travelling uphill 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 pulley and a screw D) a lever and a wedge
A) a machine B) friction C) speed D) a magnet
A) a force B) a machine C) a power D) a current
A) magnetism B) work C) friction D) power E) force |