Force and Energy

Newton's First Law applies to:

• only objects that are moving

• only objects that are not moving

• all objects, whether moving or not

• no object, whether moving or not

Newton's Second Law:

• p = mv

• F = ma

• E = mc^2

• KE = (1/2)mv^2

Any change in velocity must be caused by:

• the object's mass

• the object's direction

• a balanced force

• an unbalanced force

Which type of energy is stored within food?

• elastic energy

• chemical energy

• mechanical energy

• gravitational energy

______ is defined as force x distance

• Power

• Energy

• Work

• Potential Energy

The SI unit that represents 1 Joule of work done each second is the:

• Joule

• Watt

• Newton

• Meter

_______ is determined by both mass and velocity

• Work

• Power

• Potential Energy

• Kinetic Energy

I sealed off a container so no matter can get in or out, but heat can still get inside. This is an example of a(n):

• Open System

• Closed System

• Isolated System

• System of Equations

If you punch a wall, your fist feels as though it was punched back with equal force. This is an example of:

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's Fourth Law

p = mv

• Power

• Momentum

• Force

• Pressure