A Lever is a solid, rigid bar that gets supported at one point/position. 2. What three things must a Lever have? An effort arm, load arm, and fulcrum. 3. What are Levers used for? Levers are used to transport heavy objects without using much work 4. What is the Fulcrum ? The fulcrum is a support/point on a lever in which the lever pivots from. Classes of Levers**
1. (i) What is an example of a Class One Lever? A see-saw. 1. (ii) Where is the effort arm, load arm, and fulcrum located on a Class One Lever? The Fulcrum is in the centre, and the load and effort arms are opposite of each other. 1. (iii) What is the Mechanical Advantage of a Class One Lever? It can either be "more than 1, less than 1, or equal to one."
2 (i) What is an example of a Class Two Lever? A wheelbarrow. 2. (ii) Where is the effort arm, load arm, and fulcrum located on a Class Tow Lever? The load arm is in the center, and the fulcrum and effort arm opposite of each other. 2. (iii) What is the Mechanical Advantage of a Class Two Lever? The Mechanical Advantage of a Class Two Lever is "more than 1".
3. (i) What is an example of a Class Three Lever? A baseball bat. 3. (ii) Where is the effort arm, load arm , and fulcrum located on a CLass Three Lever? The effort arm is in the middle, and the load arm and fulcrum opposite of each other. 3. (ii) What is the Mechanical Advantage af a Class Three Lever? The Mechanical Advantage of a Class Three Lever is "less than 1".
*highlight the bottom of the question to display the correct answer*
Step (1) (Ex. What is....?
The answer is....)
Step (2) (Ex. What is....?
The answer is....)
LEVERS: Basic Knowledge
1. What is a Lever?
A Lever is a solid, rigid bar that gets supported at one point/position.
2. What three things must a Lever have?
An effort arm, load arm, and fulcrum.
3. What are Levers used for?
Levers are used to transport heavy objects without using much work
4. What is the Fulcrum ?
The fulcrum is a support/point on a lever in which the lever pivots from.
Classes of Levers**
1. (i) What is an example of a Class One Lever?
A see-saw.
1. (ii) Where is the effort arm, load arm, and fulcrum located on a Class One Lever?
The Fulcrum is in the centre, and the load and effort arms are opposite of each other.
1. (iii) What is the Mechanical Advantage of a Class One Lever?
It can either be "more than 1, less than 1, or equal to one."
2 (i) What is an example of a Class Two Lever?
A wheelbarrow.
2. (ii) Where is the effort arm, load arm, and fulcrum located on a Class Tow Lever?
The load arm is in the center, and the fulcrum and effort arm opposite of each other.
2. (iii) What is the Mechanical Advantage of a Class Two Lever?
The Mechanical Advantage of a Class Two Lever is "more than 1".
3. (i) What is an example of a Class Three Lever?
A baseball bat.
3. (ii) Where is the effort arm, load arm , and fulcrum located on a CLass Three Lever?
The effort arm is in the middle, and the load arm and fulcrum opposite of each other.
3. (ii) What is the Mechanical Advantage af a Class Three Lever?
The Mechanical Advantage of a Class Three Lever is "less than 1".
9