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2 cards from this section. Quick, good the night before a test.
What formula do you use to calculate torque?
Remember, torque involves force and distance.
Define moment arm.
Think about where the force is applied in relation to the pivot.
What does torque measure?
Think about how forces can cause rotation.
True or False: The moment arm is the distance from the force's line of action to the pivot point.
Reflect on where the force is applied compared to the pivot.
You are designing a seesaw. If you want one side to have twice the lever arm length as the other, how much force will be needed to balance a 30 kg child sitting on the shorter side, if gravity is acting?
Consider that torque must be balanced on both sides.
A door is 1.2 meters wide. If you apply a force of 20 N at the edge of the door, calculate the torque produced.
Use the distance from the pivot point along the door.
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