Grade 6 Science - Chapter 11 Review

Force : any push or _______________ on an object

• pull

• grab

• drag

• friction

Energy: the ability to do ____________

• motion

• force

• movement

• work

Work: a(n) ______________ moving an object through a(n) ______________

• push / position

• force / distance

• work / force

• distance / force

Simple Machine: a device that makes it easier to do work by changing the force or the ________________________ involved

• energy

• motion

• movement

• direction

Newton's First Law of motion:

The only way to change the velocity of an object is to apply a ________________.

• movement

• force

• distance

• speed

Newton's Second Law:

Acceleration is affected by force and by ___________________.

• direction

• speed

• mass

• movement

Newton's Third Law:

Every action force has an equal and opposite __________________________ .

• reaction force

• force

• movement

• reason

A change in an object’s position compared to the position of another object is called

• force

• motion

• speed

• distance

The distance that an object moves, divided by the time it takes to move, is the object’s

• position

• apparent motion

• acceleration

• speed

A description of a moving object’s speed and direction is its

• velocity

• average speed

• lift

• thrust