Semester 1 exam review Part 2

Front

What is the Force of Friction?

Back

The force that opposes the motion of an object in contact with a surface.

Front

What happens to the velocity of two linked freight cars after a collision?

Back

The velocity of the combined cars after the collision is one half as large as the velocity of the first car before the collision.

Front

What is the Normal Force?

Back

The force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

If a student applies a force 'F' on a car with mass 'm' resulting in acceleration 'a', what is the new acceleration when the force is doubled?

Back

The new acceleration is 2a.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity.

Front

Which object has greater momentum: an object with greater mass and greater velocity or one with smaller mass and greater velocity?

Back

The object with greater mass and greater velocity has greater momentum.

Front

What is the formula for calculating momentum?

Back

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

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, Force (F) = mass (m) × acceleration (a).

Front

What is the effect of friction on motion?

Back

Friction opposes motion, causing objects to slow down or stop.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on objects at rest, while kinetic friction acts on moving objects.