Unit 8.1 Flashcard 8

Front

What is air resistance?

Back

Air resistance is a force that opposes the motion of an object through the air, increasing with the object's speed and surface area.

Front

How does mass affect the speed of an object when force is constant?

Back

If the force is constant and the mass of the object increases, the acceleration (and thus the change in speed) decreases.

Front

What is the relationship between friction and surface texture?

Back

Rougher surfaces have greater friction compared to smoother surfaces, which have less friction.

Front

What happens to a cart and box system when friction is present?

Back

Friction causes the cart and box to slow down and eventually stop.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion; it depends on the object's mass.

Front

What is the effect of bat swing speed on the speed of a ball?

Back

The bat swing speed has a bigger effect on the speed of the ball than the mass of the bat.

Front

Define force in the context of motion.

Back

Force is a push or pull that can cause an object to accelerate, change direction, or change shape.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.

Front

Explain the concept of thermal energy in relation to friction.

Back

Friction converts kinetic energy into thermal energy, which can cause an increase in temperature.

Front

What is the principle of conservation of energy?

Back

The principle states that energy cannot be created or destroyed, only transformed from one form to another.