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Science 5.7 & 5.8
Science
Question | Answer |
---|---|
_______ machines can be conmbined to make compound machines. | Simple |
An _________ is a sloping surface like a ramp. | Inclined plane |
A bicycle is a ____________ machine | compound/complex |
Example of an inclined plane that moves. | Screw |
All _____ increase the length of the rope to reduce the force needed to move an object. | pulleys |
A ramp, knife, screw, and screw lid are all examples of ________. | inclined planes |
A car is a ___________ machine. | compound/complex |
A _______ is a bar that is free to move around a fixed point called a fulcrum. | lever |
A wedge, lever, and wheel & axle are all ______ machines. | simple |
In a _______, the axle acts as the fulcrum and the rope is like a bar. | pulley |
A _________ is like a lever because it has a grooved wheel with a rope running along the groove. | pulley |
A block and tackle is an example of a _______. | pulley |
Machines make work __________ by decreasing the amount of forc required. | easier |
A flag pole and a block and tackle are all example of a ________. | pulley |
A hammer, pliers, scissors, and wheelbarrow are all examples of a _______. | lever |
The greater the distance of a ramp, the _______ amount of force is required to move an pbject. | less |
A ______________ is a device that makes doing work easier by reducing the amount of force required to move an object. | simple machine |