Understanding Motion

Which principle of motion is the measure of the gravitational force acting on an object?

• Weight

• Stability

• Inertia

• Momentum

In most cases, what exerts the gravitational force on a body?

• The Moon

• The Sun

• The Earth

• Other planets

What is the acceleration due to gravity at the Earth's surface?

• 9.81 m/s²

• 8.91 m/s²

• 9.18 m/s²

• 8.19 m/s²

Momentum is the product of which two quantities?

• Mass and acceleration

• Force and distance

• Mass and velocity

• Speed and time

What is mass?

• The ammount of matter a body posesses

• How many protons and electrons a body posesses

• How heavy an object is

• The gravitational force acting on a body

What does stability consider about a body?

• How heavy it is and where its centre of mass is

• Mass and speed

• Centre of mass and base of support

• Mass and base of support

What is a force?

• A pushing action

• A pulling action

• A pushing or pulling action

• The thing from Star Wars

What is Newton's First Law?

• Law of inertia

• Law of acceleration

• Law of reaction

What is Newton's Second Law?

• Law of inertia

• Law of acceleration

• Law of reaction

What is Newton's Third Law?

• Law of inertia

• Law of acceleration

• Law of reaction