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The energy stored in a stretched rubber band is an example of:
A. Elastic potential energy
B. Gravitational potential energy
C. Kinetic energy
D. Chemical energy
Answer: Elastic potential energy
What is the total energy of an object equal to?
A. The sum of its kinetic and potential energy
B. The sum of its work and power
C. The sum of its force and displacement
D. The sum of its power and work
Answer: The sum of its kinetic and potential energy
The amount of work done in moving an object can be increased by:
A. Increasing the force applied
B. Decreasing the distance moved
C. Decreasing the force applied
D. Keeping the force constant
Answer: Increasing the force applied
What type of energy is involved in a roller coaster going down a hill?
A. Potential to Kinetic
B. Kinetic to Potential
C. Potential to Thermal
D. Kinetic to Thermal
Answer: Potential to Kinetic
The unit of mechanical advantage is:
A. Dimensionless
B. Newton
C. Joule
D. Watt
Answer: Dimensionless
What is the work done by a force of 50 N to move an object 5 meters vertically upwards?
A. 250 J
B. 50 J
C. 10 J
D. 5 J
Answer: 250 J
The rate of doing work is known as:
A. Energy
B. Power
C. Work
D. Force
Answer: Power
Which of the following is an example of mechanical energy?
A. Wind energy
B. Heat energy
C. Chemical energy
D. Electrical energy
Answer: Wind energy
The energy required to raise the temperature of 1 gram of water by 1°C is called:
A. Calorie
B. Joule
C. Watt
D. Newton
Answer: Calorie