A) friction B) force C) gravitation D) magnetism E) work
A) work B) gravitation C) friction D) force E) magnetism
A) magnetism B) friction C) force D) work E) gravitation
A) unbalanced forces B) work C) force D) balanced forces E) magnetism
A) power B) net force C) gravitation D) force E) work
A) power B) force C) work D) net force E) friction
A) balanced forces B) unbalanced forces C) friction D) power E) work
A) magnetism B) gravity C) friction D) newton
A) it continues in a straight line B) a nearby star acts on it C) an outside force acts on it D) it is placed on a flat surface
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 position changes B) its frame of reference changes C) its mass and velocity changes D) its momentum changes
A) The movement of objects on Earth and in space B) the relationship between the four basic elements C) how frame of reference influences movement D) Why all moving objects eventually stop moving
A) People in a car move forward in their seats when the car stops quickly B) friction can be overcome for all objects C) the ground pushes against your feet when you run D) gravitational forces are stronger on Earth than on the moon or other satellites
A) orbit B) reaction force C) inertia D) law of universal gravitation
A) inertia B) reaction force C) action force D) orbit E) Law of Gravitation
A) inertia B) action force C) orbit D) Reaction force
A) momentum B) speed C) acceleration D) velocity E) position
A) position of that object B) velocity of that object C) momentum of that object D) the speed of that object E) acceleration of that object
A) speed B) momentum C) velocity D) position E) acceleration
A) speed B) acceleration C) position D) velocity E) momentum
A) a pole can be knocked down when a moving car hits it B) a ball thrown into the air always falls back toward Earth C) a spacecraft can travel in space for thousands of years D) trucks slow down when they are travelling uphill
A) a lever and a wedge B) a pulley and a screw C) a wedge and a pulley D) A screw and a wedge
A) speed B) a magnet C) friction D) a machine
A) a force B) a current C) a machine D) a power
A) power B) force C) friction D) work E) magnetism |