This simple machine allows you to from one level of ground to another with little force.
Inclined Plane
What is the Kinetic Energy of jogger with a mass of 55kg jogging at 2 m/s?
110 Joules
What is the amount and direction of the Net Force?
10 N to the Right
A 5 kg apple is hanging from a branch 10 m in the air. What is the PE?
490 Joules
Amplitude is used to measure the _____________ of a wave.
Height of a wave
This is Newton's First Law of Motion stating that an object at rest will stay at rest unless a force acts upon it.
Inertia
A catapult is an example of what simple machine
Lever
How much energy does a 25kg dog running at 4m/s have?
200 Joules
What is the Amount and Direction of the Net Force?
400 N Down
A car with a Mass of 1200 kg is sitting at the top of 30 m hill. How much energy does it have?
352,800 Joules
The number of waves in a specified time is the _____________.
Frequency
Double Points! Fill in the blank.
Force Changes the _____________ of an object.
Motion...Half points if you said direction
DOUBLE Points!
What is the definition of a Rube Goldberg machine?
A complex machine made of simple machines to complete a simple task.
What is the Mass of an object that has 2000 J of Kinetic Energy traveling at a rate 10 m/s?
40 kg
If a block has a Mass of 200kg and is Accelerating at a rate of 6m/s2 what is the resulting force?
1,200 Newtons
A Hanglider has 10,000 Joules of Potential energy. If the hang glider has a mass of 50 kg what is their height? Round to the nearest tenth.
20.4 meters
Higher frequencies have a ______________ pitch.
Higher
DOUBLE POINTS!
How are Speed and Acceleration different
If you only have the different units... half points.
Speed is distance over time. Always constant
Acceleration is any change in speed or direction. Always changing, never constant.
m/s m/s2
The cap on a bottle is an example of what simple machine?
Screw
Identify the FORM of energy shown in each of the the Three pictures.
Chemical, Electrical, Electrical (Bonus: If you said Heat as a 4th Form of Energy)
What is the equation to find Acceleration?
(V2-V1)/t
Give an example of potential Chemical Energy.
Answers may vary
Sound waves move through air molecules by ________________ them.
Compressing
This kind of Friction occurs when water or air slow the movement of an object.
Drag
Name the ONLY simple Machine NOT shown in this picture
Screw, Gear for points as well.
List all the FORMS of energy IN ORDER that they happen in the following story:
Mark gets up from his chair and goes to his locker. Mark gets out his sandwich and eats it. 20 minutes later Mark is playing soccer outside. Mark enjoys the sunshine.
Mechanical (Getting up from chair and getting sandwich), Chemical (eating the Sandwich), Mechanical (Playing soccer). Electromagnetic (Sunshine).
Double Points!
A Student is pushing a 50 kg cart with a force of 600N. The cart is ONLY accelerating at 3 m/s2. How much frictional force must be acting on the cart?
450 Newtons of Friction acting against the cart.
A roller coaster cart has a potential energy of 5,500 Joules. If the roller coaster is at a height of 20 m what is the mass of the cart? Round to nearest whole number.
28 kg
The tops of waves are called ____________ while the bottoms or valleys are called _____________.
Crests, Troughs
Which of Newton's Laws of Motion explain why the heaviest football athletes play on the Offensive and Defensive lines?
2nd and 3rd law