M2 Supplemental Science Term 1 Final

A vector quantity is a measure that includes ​ (a)   and ​ (b)  

• size
• direction
• distance
• polarity
• mass
• power
• time
• force

Which of the following are vector quantities? (choose all that apply)

• Speed
• Acceleration
• Momentum

• Inertia

What is the difference between speed & velocity?

• Speed is scalar, velocity is vector
• Speed is vector, velocity is scalar
• Both are the same, there is no differeence.

The schoolboy walks from A -> B -> C & then back -> A.

What distance (m) has he travelled?

Mathematical Equivalence

ON

The schoolboy walks from A -> B -> C & then back -> A.

What is his displacement (m)?

Mathematical Equivalence

OFF

The schoolboy then walks from A -> B -> C in 14 seconds. What is his speed? (ms^-1)

Mathematical Equivalence

ON

The schoolboy then walks from A -> B -> C in 14 seconds. What is his velocity? (ms^-1)

Mathematical Equivalence

ON

What is an example of a non-contact force?

• Friction
• Air resistance
• Gravity
• Normal force

If two bodies move closer together, what happens to the gravitational force between them?

• The gravitational force decreases
• The gravitational force increases
• The gravitational force remains the same
• The gravitational force becomes zero

The force that resists forward motion of an object is called ________.

• Gravity
• Friction
• Inertia
• Momentum