Physics Review

Front

What is the SI unit of measurement for force?

Back

Newtons

Front

As the angle between two concurrent forces decreases, what happens to the magnitude of the force required to produce equilibrium?

Back

Increases

Front

What is the term for the sum of two or more vectors?

Back

Resultant

Tags

NGSS.HS-PS3-5

Front

How is the horizontal motion of a projectile described, assuming no air resistance?

Back

Constant velocity

Front

If a small airplane is flying north at 80 km/h and encounters a tailwind blowing north at 60 km/h, what is its resulting velocity?

Back

140 km/h

Tags

NGSS.MS-PS2-2

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = ma)

Tags

NGSS.MS-PS2-2

Front

Define 'acceleration'.

Back

Acceleration is the rate of change of velocity per unit of time.

Front

What is the principle of conservation of momentum?

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event.

Front

What is the difference between scalar and vector quantities?

Back

Scalar quantities have magnitude only, while vector quantities have both magnitude and direction.

Front

What is gravitational acceleration on Earth?

Back

Approximately 9.8 m/s².