physical science comprehension 1

Front

What is velocity?

Back

Speed in a specific direction.

Front

What does Newton's 2nd law state?

Back

Force equals mass times acceleration.

Front

What happens if you break a bar magnet into 8 pieces?

Back

You would have 8 complete magnets.

Front

What unit is used to measure voltage?

Back

Volts.

Front

If the potential difference is 12 volts and the resistance is 5 ohms, what is the current?

Back

2.4 A.

Front

What is acceleration?

Back

The rate of change of velocity.

Front

What is the formula for calculating force?

Back

Force = mass x acceleration.

Front

What is the difference between speed and velocity?

Back

Speed is scalar (magnitude only), while velocity is vector (magnitude and direction).

Front

What is the unit of force in the SI system?

Back

Newton (N).

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed.