ENERGY TYPES
Q: What type of energy does a moving roller coaster have?
A: Kinetic energy
Q: If you push with 6 N of force over 3 m, how much work is done?
A: 18 J
Q: Work = 24 J, Force = 6 N. What is the distance?
A: 4 m
Q: What is the fixed point on a lever called?
A: Fulcrum
Q: What is a machine made of two or more simple machines called?
A: Compound (complex) machine
Q: What type of energy does a stretched rubber band have?
A: Potential energy
Q: What simple machine is used to push a heavy box into a truck using a ramp?
A: Inclined plane
Q: What type of energy is stored in food and fuel?
A: Chemical energy
Q: If a force of 9 N moves an object 2 m, what is the work?
A: 18 J
Q: Work = 30 J, Distance = 5 m. What is the force?
A: 6 N
Q: What simple machine is a slanted surface used to raise objects?
A: Inclined plane
Q: Why is a bicycle considered a compound machine?
A: It uses multiple simple machines
Q: What type of energy is produced by lightning?
A: Electrical energy
Q: What simple machine is used when opening a soda can tab?
A: Lever
Q: What type of energy travels in waves and can be heard?
A: Sound energy
Q: A student lifts a box with 10 N of force for 5 m. What is the work?
A: 50 J
Q: Work = 56 J, Force = 8 N. What is the distance?
A: 7 m
Q: What simple machine uses a rope and wheel to lift objects?
A: Pulley
Q: What simple machines is found in scissors?
Lever and incline plane
Q: What type of energy is shown when sunlight warms your skin?
A: Radiant energy
Q: What simple machine is used when raising a flag on a flagpole?
A: Pulley
Q: What type of energy comes from heat inside the Earth?
A: Geothermal energy
Q: A force of 7 N is used over 4 m. What is the work?
A: 28 J
Q: Work = 63 J, Distance = 9 m. What is the force?
A: 7 N
Q: What simple machine is made of a wheel attached to a rod?
A: Wheel and axle
Q: How do simple machines make work easier using W = F × D?
A: They reduce force by increasing distance
Q: What type of energy does a moving car have because of its motion?
A: Kinetic energy
Q: What simple machine is used when turning a screwdriver?
A: Wheel and axle
Q: What type of energy is the combination of motion and stored energy?
A: Mechanical energy
Q: A machine applies 12 N over 6 m. What is the work done?
A: 72 J
Q: Work = 81 J, Force = 9 N. What is the distance?
A: 9 m
Q: In class 2 and 3 levers, where is the fulcrum compared to class 1?
A: Not in the middle / shifted position / at one end
Q: If you use more pulleys, what happens to the force needed?
A: It decreases
Q: What type of energy is released when atoms split?
A: Nuclear energy
Q: Why would someone use a ramp instead of lifting something straight up?
A: It reduces the force needed (increases distance)