A) friction B) magnetism C) force D) gravitation E) work
A) magnetism B) friction C) force D) gravitation E) work
A) work B) force C) gravitation D) friction E) magnetism
A) force B) work C) magnetism D) unbalanced forces E) balanced forces
A) force B) net force C) gravitation D) work E) power
A) work B) friction C) power D) net force E) force
A) power B) balanced forces C) work D) friction E) unbalanced forces
A) newton B) gravity C) friction D) magnetism
A) it is placed on a flat surface B) a nearby star acts on it C) it continues in a straight line D) an outside force acts on it
A) a force sending it backward B) a movement in all directions C) an equal and opposite reaction D) a greater force pushing on it
A) its mass and velocity changes B) its momentum changes C) its frame of reference changes D) Its position changes
A) The movement of objects on Earth and in space B) Why all moving objects eventually stop moving C) the relationship between the four basic elements D) how frame of reference influences movement
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) law of universal gravitation B) reaction force C) orbit D) inertia
A) reaction force B) orbit C) action force D) Law of Gravitation E) inertia
A) inertia B) orbit C) action force D) Reaction force
A) acceleration B) speed C) velocity D) momentum E) position
A) momentum of that object B) position of that object C) velocity of that object D) acceleration of that object E) the speed of that object
A) momentum B) velocity C) position D) speed E) acceleration
A) speed B) momentum C) acceleration D) velocity E) position
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 lever and a wedge B) A screw and a wedge C) a wedge and a pulley D) a pulley and a screw
A) friction B) a machine C) a magnet D) speed
A) a power B) a machine C) a force D) a current
A) power B) magnetism C) friction D) force E) work |