Forces and motion mastery

When two forces act in the same direction, they

• are divided by the first force

• are multiplied

• are added together

• are subtracted from one another

Like velocity and acceleration, forces are described by

• when they act AND react

• who exerts them AND why they react

• how strong they are AND which direction they are applied

• how fast they are AND when they occur

Which of the following is the cause of an acceleration

• speed

• inertia

• force

• velocity

____________ and ____________ affect nearly all motion.

• Wind and water

• Fire and earth

• Gravity and friction

• Math and logic

The unit of force is a

• Joule

• Newton

• Meter

• Kilogram

The magnitude of the gravitational force acting on an object is

• frictional force

• weight

• inertia

• mass

The length of a force vector represents the

• cause of the force

• direction of the force

• magnitude of the force

• type of force

Which of the following is the tendency of an object to maintain its state of motion?

• acceleration

• inertia

• force

• velocity

What is the acceleration of a one kilogram object acted upon by a force of one Newton?

• 1 m/s

• 10 m/s

• 1 m/s/s

• 10 m/s/s

If an object has a mass of 100 kilograms its weight is

• 98 Newtons

• 980 Newtons

• 9.8 Newtons

• 9800 Newtons