Phy8_Forces _ Flashcard1_ Study guide

Front

What is the scientific unit for mass?

Back

Kg (kilogram) is the scientific unit for mass.

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces are combined.

Front

If two forces of 40 N are acting in opposite directions, what is the net force?

Back

0 N (Balanced forces result in no net force).

Front

Which wheelbarrow is more difficult to push if one is loaded with bricks and the other is empty?

Back

The loaded wheelbarrow is more difficult to push due to its greater mass and inertia.

Front

What is the relationship between mass and inertia?

Back

As mass increases, inertia increases.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

If an object has a mass of 10 kg, what is its weight on Earth?

Back

Weight = mass × gravity; Weight = 10 kg × 9.8 m/s² = 98 N.

Front

What happens to the net force if two equal forces act in the same direction?

Back

The net force is the sum of the two forces.

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = m × a).

Front

What is the effect of increasing mass on acceleration if the force remains constant?

Back

Increasing mass will decrease acceleration.