S432 Physics Set 1 Finals Review

Front

What is conserved in an elastic collision?

Back

Both momentum and kinetic energy are conserved in an elastic collision.

Front

What does it mean if the net force on an object is zero?

Back

If the net force on an object is zero, the object has a constant velocity.

Front

What is the vertical acceleration of a projectile during its flight?

Back

The vertical acceleration of a projectile during its flight is -9.8 m/s² due to gravity.

Front

How does the horizontal velocity of a projectile behave in ideal conditions?

Back

The horizontal velocity of a projectile remains constant in ideal conditions (no air resistance).

Front

How do you calculate gravitational potential energy?

Back

Gravitational potential energy (PE) is calculated using the formula PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the gravitational potential energy of a 1 kg object held 10 m above the ground?

Back

The gravitational potential energy is 100 J (using g = 10 m/s²).

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented as p = mv.

Front

What is the principle of conservation of momentum?

Back

The principle of conservation of momentum states that the total momentum of a closed system remains constant if no external forces act on it.

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved; in inelastic collisions, momentum is conserved but kinetic energy is not.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic energy (KE) is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.