Physical Science Term 1 Test Review number 2

Front

The law of conservation of energy means ________________________

Back

Energy CANNOT be created or destroyed, only transformed.

Front

What pressure does a 4000N horse exert on the ground if each foot is 10cm²?

Back

400 N/cm².

Front

Who discovered the principle of buoyancy?

Back

Archimedes.

Front

Which law states that the buoyant force on an object is equal to the weight of the fluid displaced by the object?

Back

Archimedes' principle.

Front

Units for work are ____________

Back

joules.

Front

What is the formula for calculating pressure?

Back

Pressure = Force / Area.

Front

Define buoyancy.

Back

Buoyancy is the upward force exerted by a fluid that opposes the weight of an object immersed in it.

Front

What is Archimedes' principle?

Back

It states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.

Front

What is the SI unit of energy?

Back

Joule (J).

Front

What is the relationship between work, force, and distance?

Back

Work = Force x Distance.