Position and Motion
The location of an object compared with a reference point.
What is position?
A push or pull acting on an object.
What is a force?
The law stating that every force has an equal force in the opposite direction.
What is Newton’s third law of motion?
Increasing this property of two objects increases their gravitational attraction.
What is mass?
The region around a magnet where magnetic forces act.
What is a magnetic field?
A change in an object’s position over time.
What is motion?
The amount of matter in an object.
What is mass?
When you push on a wall, the wall pushes back on you with this amount of force.
What is an equal amount of force?
Increasing this measurement between two objects decreases their gravitational attraction.
What is distance?
The region around an electrically charged object where it can exert a force.
What is an electric field?
A place or object used to determine whether another object has moved.
What is a reference point?
A change in an object’s speed or direction.
What is acceleration?
When a helicopter blade spins it hits the air. How much force is the air applying to the helicopter blade?
equal amount of force, in the opposite direction
It is measurement of force to describe how much an object is being pulled. mass x acceleration (due to gravity)
What is weight?
The movement of charged particles through a conductor.
The distance an object travels during a certain amount of time.
What is speed?
The combination of all the forces acting on an object.
What is net force?
A rocket moves upward by pushing these downward.
What are exhaust gases?
What two factors must be balanced in order to achieve a sable orbit?
speed (inertia) and gravity
Name two factors that influence the strength of an electromagnet.
number of coils, amount of current, core material, thickness of wire
When two objects are moving, the motion of one object compared with the other is called this.
What is relative motion?
Forces that cause no change in an object’s motion because their sum is zero.
What are balanced forces?
When a person jumps from a small boat, the boat moves away from the person. The boat’s movement is an example of this.
What is a reaction force?
Which is the fastest planet?
Mercury (because it is closer it experience more gravity between the sun, therefore it needs more speed to not get sucked in)
A device with an electromagnet and a permanent magnet that changes electrical energy into mechanical motion.
What is an electric motor?