Science Chapter 4

The weight of the object being moved is called the:

• force

• effort

• load

• heavy

What is an object that makes work easier?

• thingy

• someone else

• machine

• basketball

What is the force that pulls objects toward the earth?

• friction

• gravity

• force

• pull

What do you call the force applied to cause a simple machine to do work?

• junction

• load

• force

• effort

What do you call the force that resists the movement of objects against each other?

• gravity

• force

• friction

• push or pull

What is the definition of motion?

• A change in position.

• A flip of a bottle.

• A jump from a swing.

• A change in temperature.

A greater mass requires ____ force to move it.

• less

• the same

• greater

• no

A force moving an object over a distance is called ____.

• push or pull

• work

• completion

• effort

The amount of work you do depends on how much ____ you use to move an object.

• energy

• gravity

• force

• friction

A block and tackle allows you to use ____ force when lifting an object because the rope moves a greater distance.

• less

• the same

• more

• no