Energy and Work Flashcard

Front

The kinetic energy of an object increases as its _______ increases.

Back

speed

Front

How much force is required to lift a rock a vertical distance of 8 m if 80 J of work were done?

Back

80 N

Front

Why does a ball eventually stop bouncing when dropped?

Back

Some of the ball’s energy is converted to other forms, such as thermal and sound.

Front

Green plants convert light energy from the sun into _____ during photosynthesis.

Back

chemical potential energy

Front

Thermal energy is transferred to the solar panel in picture B by ____. Options: Convection, Conduction, Friction, Radiation

Back

Radiation

Front

An object has a velocity of 9 m/s and a mass of 20 kg. What is the kinetic energy of the object?

Back

810 J

Front

A 5 kg medicine ball is thrown upward at a speed of 2 m/s. How much energy does it have?

Back

10 J

Front

Which requires more work? Pushing a box with a force of 115 N a distance of 15 m or lifting a 20 kg mass a distance of 10 m?

Back

Pushing a box with a force of 115 N a distance of 15 m

Front

A form of energy that is reflected or emitted from objects in the form of waves that can travel through space.

Back

Electromagnetic energy

Front

Plastic is an example of this.

Back

Insulator