Newton's Laws and IMA
Force
Energy and Gravity
Machines
Other
100
Ideal Mechanical Advantage
What is IMA?
100
The strength or power exerted upon an object.
What is a force?
100
The ability to cause change: can change the speed, direction, shape, or temperature of an object.
What is energy?
100
Something that makes work easier.
What is a simple machine?
100
Distance divided by time
What is speed?
200
Effort distance divided by output distance
How can IMA be calculated for each of the machines?
200
One force is stronger than the other.
What is an unbalanced force?
200
The energy possessed by a system or object as a result of its motion.
What is Kinetic Energy?
200
When you use at least two simple machines to get work done.
What is a compound machine?
200
Speed and direction
What is velocity?
300
An object at rest tends to stay at rest, unless acted upon by an outside force.
What is Newtons first Law of Motion? (Inertia)
300
Force between objects, type of surface, and surface area.
What factors affect frictional force?
300
The energy possessed by a body as a result of its position or condition rather than its motion.
What is Potential Energy?
300
1 An inclined plane that will cut by changing the direction of the force. 2 Makes things easier to lift. 3 A ramp. 4 Turns rotation into length wise movement. It takes many twists to go a short distance. It holds things together. 5 Makes lifting things with a rope easier by redirecting. 6 Makes it easy to move things by rolling them , reduces friction.
1 wedge 2 lever 3 inclined plane 4 screw 5 pulley 6 wheel and axle
300
A trajectory, the path described by an object moving in air or space under the influence as thrust, wind resistance, and gravity.
What is the path of a projectile?
400
For every action, there is an equal and opposite reaction.
What is Newton's 3rd Law of Motion?
400
A force acting on a moving object at an angle to the direction of motion, tending to make the body follow a circular or curved path.
What is centripetal force?
400
The force of attraction that moves or tends to move bodies toward the center of the Earth or Moon.
What is gravity?
400
By decreasing the work input to the machine, without increasing the output.
How can the efficiency of a machine be improved?
400
Done when an applied force causes an object to move in the direction of the force.
What is work?
500
The acceleration of an object is in the same direction as the net force on the object.
What is Newton's 2nd law of Motion?
500
joules
What units are used for energy, work, force, and weight?
500
Mass and distance
What factors affect amount of gravity?
500
No, because of air resistance. Hint: falling objects
Do all objects fall at the same rate?
500
Greater mass.
What factor affects inertia?
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