Physics By Luke and Leo

Units

100

What is the unit for time?

Seconds

200

What are the units for momentum?

Newtons*seconds or kilograms*meters/seconds

300

What are one of the units for Power?

Watts or Joules/second

400

What are the two different units used for Work?

Newton*meters and Joules

500

What are the units for a spring constant?

Newtons/meter

Kinematics

100

Name one of the kinematic equations

d=V_it+(1/2)at²

V_f=V_i +at

v_f²=v_i² + 2ad

200

What variable is constant in every kinematic equation?

acceleration or initial velocity

300

If you don't have the distance an object travels and need the Final velocity (given that you know all other variables needed) what Kinematic equation do you use?

V_f=V_i + at

400

V_f= 20 m/s

a= 5 m/s²

t= 1 s

V_i= ?

V_i= 4 m/s

500

What kinematic equation does not include time?

V_f²=V_i² + 2ad

Equations

100

What equation finds acceleration?

a = v/t

200

What equation finds net force (F_net)?

F_net=ma

300

What equation finds weight or force due to gravity(F_g)?

F_g= (Gm₁m₂)/r²

400

What equation finds centripetal acceleration (a_c)?

a_c=v²/r

500

What equation finds the gravitational field strength(g)

g=F_g/m

Motion Graphs

100

What is the slope of a distance vs time graph?

Velocity

200

What does the area under a velocity vs time graph represent?

Displacement

300

What does a line at constant acceleration look like on a Velocity vs time graph?

Linear line

400

What does the line of a Centripatal Force vs velocity graph look like?

Positive exponential line

500

what is the slope of a force vs time graph?

Mass

Scalar Vs Linear

100

Is distance vector or scalar?

Scalar

200

Is energy vector or scalar?

Scalar

300

Is Newtons*seconds scalar or vector?

Vector

400

What quantity does a vector have that a scale one does not?

Direction

500

Which one of the following is a vector?

Speed

Weight

Energy

Density

Weight