Podcast Beta
Questions and Answers
Which gear in a system is known as the driver?
Answer hidden
What happens to connected gears' directions of rotation?
Answer hidden
What simple machine is used by the Métis during the fur trade in Canada?
Answer hidden
In vehicles, where are sets of wheels typically attached?
Answer hidden
What type of force is experienced when an object directly touches another object?
Answer hidden
Which force is responsible for filling a parachute with air to make it land more slowly?
Answer hidden
What force attracts objects 'downward' to the ground and prevents them from floating through the air?
Answer hidden
Which force is exerted by wind and air molecules to push an object when it is in the air?
Answer hidden
What effect does frictional force have on objects moving across a surface?
Answer hidden
How are rollers different from wheels?
Answer hidden
What role did rollers play in the construction of the Great Pyramids by the Ancient Egyptians?
Answer hidden
How do rollers help in reducing the effort needed to move heavy loads?
Answer hidden
What is the main difference between an inclined plane and a wedge?
Answer hidden
How does gravity affect the movement of objects on an inclined plane?
Answer hidden
How do wedges help in reducing the effort needed to lift an object?
Answer hidden
What is the main purpose of using a pulley system?
Answer hidden
In a fixed pulley system, why is the pulley considered 'fixed'?
Answer hidden
What is the defining characteristic of a movable pulley system?
Answer hidden
How does increasing the number of pulleys in a system affect the effort needed to move the load?
Answer hidden
What is the turning point in a lever called?
Answer hidden
Which lever class has the fulcrum between the load and the effort?
Answer hidden
What do we use as a simple rhyme to remember the classes of levers?
Answer hidden
In a third-class lever, which part is typically in the middle?
Answer hidden
What determines the type of lever based on the order of fulcrum, load, and effort?
Answer hidden
Rollers are more effective in reducing effort needed to move heavy loads compared to wheels.
Answer hidden
A compound machine uses only one simple machine to solve problems efficiently.
Answer hidden
Friction is the resistance between surfaces that come in contact with each other.
Answer hidden
Simple forces play a crucial role in creating the force needed to move a device.
Answer hidden
Match the force application method with its result:
Answer hidden
Match the simple machine with its function in devices:
Answer hidden
Match the lever class with its fulcrum position:
Answer hidden
Match the force application method with its effect on objects:
Answer hidden
Match the force with its description:
Answer hidden
Match the force category with its characteristics:
Answer hidden
Match the object with the force it experiences:
Answer hidden
Match the description with the correct simple machine:
Answer hidden
Match the item with its description:
Answer hidden
In a moveable pulley, the load is attached to one pulley while the other pulley is ______
Answer hidden
The block and tackle pulley system uses a combination of fixed and moveable ______
Answer hidden
Anything that uses your arm to move a load, such as a golf club, hockey stick or baseball bat are all ______ levers.
Answer hidden
Examples of second-class levers are a wheelbarrow, a bottle opener, or a ______.
Answer hidden
Examples of third-class levers are fishing poles, tongs, or ______.
Answer hidden
A first-class lever has the fulcrum between the ______ and the effort.
Answer hidden
Examples of second-class levers are a wheelbarrow, a bottle opener, or a ______.
Answer hidden
Anything that uses your arm to move a load, such as a golf club, hockey stick or baseball bat are all ______ levers.
Answer hidden
Rollers are more effective in reducing effort needed to move heavy loads compared to ______.
Answer hidden
Gears are wheels with teeth on them. The teeth are called ______.
Answer hidden
The gear that has the energy first and causes another gear to turn is called the ______.
Answer hidden
In the wheel-to-wheel contact drive system, one wheel causes another wheel to turn by rolling against it. This is known as the wheel-to-wheel contact drive ______.
Answer hidden
Explain the difference between first-class, second-class, and third-class levers using examples.
Answer hidden
How do compound machines differ from simple machines?
Answer hidden
