Flashcard 5 - Matter & Energy

Front

What is the term for the space relative to which motion is measured?

Back

Frame of reference.

Front

What is the term for the rate of change of velocity?

Back

Acceleration.

Front

What is the SI unit of force?

Back

Newton.

Front

If a box is pushed with a force of 185 N to the right and a frictional force of 175 N to the left, what is the net force acting on the box?

Back

10 N to the right.

Front

How do you calculate acceleration if you know the net force and mass of an object?

Back

Acceleration = Net Force / Mass.

Front

What is the formula for calculating net force when multiple forces are acting on an object?

Back

Net Force = Sum of all forces acting on the object.

Front

If two forces are acting in opposite directions, how do you determine the net force?

Back

Subtract the smaller force from the larger force and take the direction of the larger force.

Front

What is the acceleration of a 50 kg box if a net force of 10 N is applied?

Back

0.20 m/s².

Front

What happens to the acceleration of an object if the net force acting on it is doubled?

Back

The acceleration is also doubled, according to Newton's second law.

Front

What is the relationship between mass, force, and acceleration as described by Newton's second law?

Back

Force = Mass x Acceleration.