3 Newton's
Laws
Laws
Give a real life example of Newton's 3rd Law
Bouncing a ball, the ball applies a downward force and the ground pushes in the opposite direction is what makes it bounce.
What types of objects exert a gravitational force
ALL objects with MASS exert gravitational force
What is electricity?
Electricity is an electric energy contained in an electric field.
Defines a Force and list all Forces
A push or a pull that causes a change in Direction, Speed, Shape.
Applied,Friction,Spring, Tension, Normal, Buoyancy, Gravitational, Electric, Magnetic.
What are some examples of non forces ?
Some examples are: light, speed, velocity, electricity love, life, etc...
Give a real life example of Newton's 1st Law
Ex: A stopped ball starts moving when you push it.
What affects the strength of gravity ?
The distance between objects and their size
The Greater the distance the less strength gravity has.The Greater the Size, the greater the strength of gravity too.
Compare Open and Closed circuits.
An open circuit is an electrical circuit with brakes and that does't work compared to an electrical circuit which is an electrical circuit without brakes and that works.
Draw an Unbalanced Net Force Test
(Shown In Class)
How are Velocity and Speed different ?
Velocity is the distance over time compared to speed which is to speed up or slow down and is the result of acceleration.
Give a real life example of Newton's 2nd Law
Pushing a car (massive) would require more force than pushing a ball.
What is frictional force ?
Give 3 real life examples
Frictional force is a force opposing motion, working agaisnt any moving objects and in the opposite direction.
What are the 3 things making up an electric circuit.
Power Source: Provides voltage to push current through a circuit.
A Wire:provides the path for current to travel and connects the electrical device to the circuit.
Electrical Device: Device that uses electric energy.
If Rania Pushes a 10Kg Box so that it accelerates 5m/s2. Find the amount of Force in (N) that she used.
Rania used An amount of force of approximately 5O(N)
What affects the strength of magnets.
The strength of magnets is affected by:
-The distance from the magnet to the magnetic object.
-The bigger the magnet, the greater the strength of the magnet is.
-The material of which is made the magnet affects its strength ( Neodymium is the strongest ).
Relate each of Newton's laws to a force that is describing it.
Applied force:Law of Inertia, F=ma, Action-Reaction
Frictional force: Law of Inertia, Action-Reaction
Gravitational force: Law of Inertia, F=ma
Magnetic force: Law of Inertia
ETC...
Define air resistance and surface area
Air resistance is the name for the upward frictional force that object are experiencing when they fall down.
Surface area is how much space is covering an area.
Ex:The room is approximately 9m^2.
Draw an Open and Close Circuit.
( do not forget to label them )
(Shown In Class)
Draw a Velocity and Acceleration graph to demonstrate a car speeding up, stopping, and slowing down .
(Shown In Class)
What's the difference between a magnet and a magnetic object.
A magnet is an object that exerts an invisible force which magnetic objects are attracted too but do not exert.
The 3 of Newton's Laws are :
Law of Inertia: Any objects in motion will stay in motion, an object at rest will stay at rest, unless an outside force acts on it.
F=ma: Acceleration occurs when a force acts on a mass. The greater the mass is the more is required to accelerate that object.
Action-Reaction Law: For all actions there is an opposite and equal reaction that occurs.
List 2 similarities and Differences Between Gravity and Friction.
Similarities: Forces, Apply to fallen objects
Differences: Non-Contact/Contact, Strength Can Change/Doesn't Change
Define the following:
Voltage, Current, Static Electricity, and Electric circuit.
Voltage: A force which is a power source that pushes charged charges around an electric circuit
Current: The movement of charges is current
Static Electricity: This electricity results when POSITIVE or NEGATIVE charges build upon an object
Electric Circuit: The path in which charges moves is known as an electric circuit.
Compare Conductors and Insulators
Then
Compare Contact and Non-Contact forces
A conductor is an object that allows electrons to flow through it compared to an insulator that resists electrons from passing through.
Contact forces are when to objects physically touch and a force acts on it compared to a non contact force which occurs when two objects don't touch but an outside force act on them.
Describe the 5 patterns of Motion
Periodic Motion:A motion that occurs over and over in a regular and repeating way.
Linear Motion:The motion along a straight line or path.
Rotation: The movement of an object around a fixed point.
Revolution:The movement of an object in a circular motion around a second object
Rolling: Combination of linear motion and rotation; an object spinning as it moves along a straight path