Physics Ch 1: Kinematics and Dynamics

Question 1

What is a vector? Examples?

Answer 1

Numbers that have magnitude and direction

Displacement

Velocity

Acceleration

Force

Question 2

What is a scalar quantity? Examples?

Answer 2

A number that has magnitude and no direction

Distance

Speed

Energy

Pressure

Mass

Question 3

What is displacement? Vector is scalar?

Answer 3

An object’s overall change in its position in space

Vector

Question 4

What is the equation to calculate average velocity?

Answer 4

v = (Δx)/(Δt)

Δx = change in position

Δt = change in time

Question 5

How is gravitational force calculated?

Answer 5

F_g = (G*m₁*m₂) / r²

G = universal gravitational constant

m₁ = mass 1

m₂ = mass 1

r² = distance between centers of mass

Question 6

What is the universal gravitational constant (G)?

Answer 6

6.67 x 10-11 N*m²/kg²

Question 7

V₀ + at = ?

Answer 7

Velocity (V)

Question 8

v₀t + (at²/2) = ?

Answer 8

Displacement (x)

Question 9

v₀² + 2ax = ?

Answer 9

velocity² (V²)

Question 10

v̅t = ?

Answer 10

Displacement (x)

Question 11

(mv²) / r = ?

Answer 11

Magnitude of centripetal force (F_c)

Question 12

r * F = rF sinθ = ?

Answer 12

Torque (τ)