Physics Final Exam

Front

What is the unit of acceleration?

Back

m/s²

Front

What will the net force on the soccer ball be if a force of 50 N is applied to the left?

Back

50 N to the left

Front

In a perfectly elastic collision, if a 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball, what is the velocity of the second ball after the collision?

Back

5 m/s

Front

What is the correct ratio for sin 40 degrees in relation to a right triangle with a hypotenuse of 28?

Back

sin 40 = w/28

Front

The Law of Conservation of Energy states that energy is never __________ or __________, only transferred.

Back

created, destroyed

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = ma)

Front

What is the principle of inertia?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for kinetic energy?

Back

Kinetic Energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

What is the definition of momentum?

Back

Momentum is the product of an object's mass and its velocity (p = mv).

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as Weight = mass × gravitational acceleration (W = mg).