physics xd

Acceleration

100

The acceleration of Earth's gravity

-9.8m/s²

200

The 3 ways to change acceleration of object

change in velocity, change in direction, change in direction and velocity

300

Does the speedometer of a car read average speed or instantaneous speed?

instantaneous speed

400

If a car takes 20s to accelerate from 0 to 20m/s, how much does its velocity increase in each second?

1.0m/s²

500

If a car's velocity increases to 30m/s from rest in 6.0s, what is its acceleration?

5.0m/s²

Speed & Velocity

100

Speed of an object that traveled 30 meters in 2 seconds.

15 m/s

200

Speed of an object that traveled 500 km in 25 hours.

20 km/hr

300

Velocity of an object displaced south 300 feet in 5 seconds.

60 ft/s south

400

Velocity of an object moved 50 meters east, 75 meters west, in an hour.

25 m/hr west

500

Speed of an object that traveled a distance of 420 km in 3 hours AND the velocity if it was displaced 69 km west.

Speed: 140 km/hr

Velocity: 23 km/hr west

Formulas

100

Formula for mass

Mass= density x volume

200

Adjacent formula

A=(cosθ)(H)

300

Opposite formula

O=(sinθ)(H)

400

Formula for acceleration

a=V_f-V_i/t_f-t_i

500

Pythagorean Theorem

a²+b²=c²

SinCosTan

100

The formula used for Sine

Opposite over Hypotenuse 

200

The formula for Cosine 

Adjacent over Hypotenuse 

300

The formula for Tangent

Opposite over adjacent 

400

The formula for finding the Opposite

(Sin θ)(H)

500

The formula for finding the Adjacent

(Cos θ)(H)

Scalar v. Vector

100

Is acceleration a scalar or vector quantity? 

Vector 

200

Is speed a vector or scalar quantity? 

Scalar

300

Is velocity a vector or scalar quantity? 

Vector

400

Is displacement a scalar or vector quantity? 

Vector

500

Is distance a vector or scalar quantity? 

Scalar