DCP #2 Review 24/25

Front

What is the chemical reaction between sodium and chlorine gas?

Back

Sodium reacts with chlorine gas to yield sodium chloride (NaCl).

Front

What is the mass of chlorine gas that reacts with sodium to form sodium chloride?

Back

48 grams.

Front

What type of forces are acting on an airplane that changes direction while maintaining constant speed?

Back

Unbalanced forces, because there is a change in direction while speed remains constant.

Front

How does the current of a river affect a boat moving in it?

Back

If the current is moving south at 2 m/s, the boat will move slower.

Front

What happens when two cars with different masses apply brakes at the same time?

Back

The car with the smaller mass will require less force to stop than the car with the larger mass.

Front

When a bus hits a bug, which force is greater?

Back

The forces are the same; according to Newton's third law, every action has an equal and opposite reaction.

Front

What is inertia?

Back

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

Front

What is the relationship between mass and force required to stop an object?

Back

Greater mass requires greater force to stop the object.

Front

What is the definition of balanced forces?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is the definition of unbalanced forces?

Back

Unbalanced forces are not equal and can cause an object to accelerate or change direction.