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Questions and Answers
A machine with a mechanical advantage of 0.5 will:
A machine with a mechanical advantage of 0.5 will:
- Reduce the output force by 0.5 (correct)
- Increase the output force by 0.5
- Not affect the output force
- Multiply the output force by 0.5
What is the unit for power?
What is the unit for power?
- Newtons (N)
- Meters (m)
- Joules (J)
- Watts (W) (correct)
Which simple machine changes the direction of a force, but does not multiply it?
Which simple machine changes the direction of a force, but does not multiply it?
- Block and tackle
- Single fixed pulley (correct)
- Lever
- Ramp/ Inclined Plane
What is the relationship between work input and work output in a perfect, frictionless machine?
What is the relationship between work input and work output in a perfect, frictionless machine?
A block and tackle system is an example of:
A block and tackle system is an example of:
Flashcards
Machine
Machine
A device with moving parts that work together to accomplish a task.
Simple Machine
Simple Machine
An unpowered device that accomplishes a task with only one movement.
Mechanical Advantage
Mechanical Advantage
The ratio of output force to input force. It tells you how much the machine multiplies the force you apply.
Power
Power
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Energy
Energy
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Study Notes
Simple Machines Vocabulary
- Machine: A device with moving parts that work together to perform a task.
- Simple Machine: An unpowered device that accomplishes a task using only one movement.
- Lever: A rigid structure that rotates around a fixed point.
- Fulcrum: The fixed point around which a lever rotates.
- Single Fixed Pulley: A simple machine that changes the direction of force, enabling lifting of weights.
- Block and Tackle: A system of two or more pulleys, used to lift heavy loads.
- Ramp/Inclined Plane: A slanted surface that allows objects to be raised more easily.
- Mechanical Advantage (MA): The ratio of output force to input force; it represents how many times a machine multiplies the input force.
- Mechanical Advantage > 1: The machine increases the output force, making it easier to move or lift heavy objects.
- Mechanical Advantage < 1: The machine reduces the output force, but increases the distance an object moves.
- Work: The energy supplied to a process or machine (measured in Joules or Newton-meters). Achieved by applying force over distance.
- Efficiency: The ratio of usable output work to total input work, usually expressed as a percentage.
- Power: The rate at which work is done (measured in Watts).
- Units of Power: Watts (W)
- Units of Work and Energy: Joules (J) or Newton-meters (Nm).
- Work Input: The energy supplied to a process or machine.
- Work Output: The useful work done by a machine.
- Units of Force: Newtons
- Units of Weight: Newtons
- Units of Mass: Kilograms (kg)
- Units of Distance: Meters (m)
- Weight: A measure of the force of gravity acting on an object.
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Description
Test your understanding of key terms related to simple machines with this vocabulary quiz. Explore concepts such as levers, pulleys, and mechanical advantage. Perfect for students learning about physics and mechanics.
