Mid-term Exam Part 2

Front

What are high tides and where do they occur?

Back

High tides are the highest level of water in the ocean at a given location, occurring in areas directly under the moon and on the opposite side of the Earth.

Front

What is the effect of the moon's position on tides?

Back

The moon's gravitational pull causes the water to bulge out, creating high tides in locations closest to the moon and on the opposite side.

Front

What does it mean when an object is not moving?

Back

An object is not moving when its velocity is zero, meaning there is no change in its position over time.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, which can occur when an object speeds up, slows down, or changes direction.

Front

What is net force?

Back

Net force is the total force acting on an object, calculated by combining all individual forces acting on it. If the net force is 0N, the object is in equilibrium.

Front

What is Newton's 1st Law of Motion?

Back

Newton's 1st Law states that an object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Front

What is an example of Newton's 1st Law in action?

Back

A magician pulling a tablecloth from under dishes without moving them demonstrates Newton's 1st Law, as the dishes remain at rest due to inertia.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

How do you calculate the net force if multiple forces are acting on an object?

Back

Net Force = Sum of all forces acting on the object, taking direction into account.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity representing how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.