Unit 3 Review Work Power and Energy

What is defined as a push or pull?

• force

• motion

• vector

• speed

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What is a force?

• A set speed
• A push or pull on an object
• A speed with direction

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What is the formula for force?

• F=M/A
• F=A/M
• F=M*A
• F=M*F

Tags

CCSS.7.NS.A.3

unit used to express power

• watt
• machine
• work
• mechanical efficiency

transfer of energy that causes an object to move in the direction of the force

• watt
• machine
• work
• mechanical efficiency

device that makes work easier by changing the size or direction of a force

• watt
• machine
• work
• mechanical efficiency

the rate at which work is done or energy is transformed

• pulley
• power
• work input
• wheel and axle

number of times a machine multiplies force

• work output
• mechanical advantage
• joule
• compound machine

unit used to express energy

• work output
• mechanical advantage
• joule
• compound machine

The unit of force is

• m/s
• m/s^2
• newton
• kg