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