Learning Task 5: Look around your home. Take note of the simple machines that you see. List down aii the things that you inink are exampies of a simpie machine or a combination of simple machines. Home: 1. 2. 3. 4. 5.
➡Q/3 The wheel and axle (steering wheel or screwdriver)
➡Q/4. The screw (scissors style car jack or window winder)
➡Q/5. Incline plane (ramp or staircase)
➡Q/1✨
➡The lever (crowbar or claw hammer)✨
➡Consists of a stiff beam that rotates around a fixed pivot point fulcrum located somewhere along the beam. Motion at one end of the beam results in motion at the other end in the opposite direction. The location of the fulcrum can magnify or reduce the force applied at one end at the expense or advantage of the distance over which the other end travels.
Q/2
➡The wedge (log splitter or knife)✨
➡Is used to convert a force applied in the direction of the wedge’s movement to a splitting action that acts at right angles to the blade. It is often used to split, cut or raise heavy objects depending on the angle of the sides of the wedge
➡Q/3✨
➡The wheel and axle (steering wheel or screwdriver)✨
➡Combines a wheel with a central fixed axle which ensures that both must rotate together. A small force applied at the edge of the wheel is converted by rotation to a more powerful force at the smaller axle. This effect can be reversed by applying a large force to the smaller axle resulting in a smaller force at the edge of the larger wheel with much greater rotational speed.
➡Q/4✨
➡The screw (scissors style car jack or window winder)✨
➡The rotation of a threaded shaft can be converted into movement in either direction along the axis of rotation depending on the direction of its spiral thread. A screw acts like an ‘incline plane’ that has been wound around a shaft. They are commonly used with gears or as a fastening mechanism
➡ Q/5✨
➡Incline plane (ramp or staircase)✨
➡commonly used to raise or lower heavy objects. The large movement of the object along the ramp is converted by the angle of the ramp’s elevation into a smaller vertical movement. Given the friction on the ramp is small, a reduced force is needed to raise a heavy object vertically although it must be moved a greater distance along the ramp to achieve this advantage.
Answers & Comments
➡machine or a combination of simple machines.
Home ✨
➡Q/1. The lever (crowbar or claw hammer)
➡Q/2. The wedge (log splitter or knife)
➡Q/3 The wheel and axle (steering wheel or screwdriver)
➡Q/4. The screw (scissors style car jack or window winder)
➡Q/5. Incline plane (ramp or staircase)
➡Q/1✨
➡The lever (crowbar or claw hammer)✨
Q/2
➡The wedge (log splitter or knife)✨
➡Q/3✨
➡The wheel and axle (steering wheel or screwdriver)✨
➡Q/4✨
➡The screw (scissors style car jack or window winder)✨
➡ Q/5✨
➡Incline plane (ramp or staircase)✨