Collisions

What is an example of a real-life inelastic collision?

• A car crash where the vehicles crumple together.

• A basketball bouncing on the ground.

• A rubber ball hitting a wall and bouncing back.

• A train colliding with a stationary object and separating afterwards.

What are the two types of collisions?

• Elastic and inelastic.

• Plastic and rigid.

• Static and dynamic.

• Frictional and gravitational.

According to Newton’s first law of motion, why do passengers move forward during a car collision?

• Because passengers will continue to move forward due to inertia.

• Because passengers are pushed forward by the seatbelt.

• Because the car stops suddenly, causing passengers to fall forward.

• Because of the force of gravity acting on the passengers.

How does mass affect momentum?

• Momentum is independent of mass.

• Momentum is the product of mass and velocity; more mass means more momentum.

• More mass means less momentum.

• Mass has no effect on momentum.

What type of collision occurs when pool balls bounce apart?

• Inelastic collision

• Elastic collision

• Perfectly inelastic collision

• Superelastic collision

What is an example of a real-life elastic collision?

• Bouncing a rubber ball on the ground.

• A car crashing into a wall.

• A person jumping into a swimming pool.

• A baseball hitting a bat.

What is the formula for momentum?

• Momentum (p) = mass (m) × velocity (v).

• Momentum (p) = mass (m) + velocity (v).

• Momentum (p) = mass (m) / velocity (v).

• Momentum (p) = mass (m) - velocity (v).

What happens to energy when you raise a ball higher before releasing it?

• It transfers more energy upon impact.

• It loses energy due to air resistance.

• It remains constant regardless of height.

• It converts to thermal energy.

What is kinetic energy?

• The energy an object has due to its motion.

• The energy stored in an object at rest.

• The energy associated with the temperature of an object.

• The energy released during a chemical reaction.

Define an elastic collision.

• A collision where both momentum and kinetic energy are conserved.

• A collision where only momentum is conserved.

• A collision that results in a loss of kinetic energy.

• A collision that occurs without any external forces.