Science Final Exam Study Guide

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces are combined. It determines the object's motion.

Front

If you push a box with 20 N to the right and your friend pulls it with 15 N to the left, what is the net force?

Back

The net force is 5 N to the right.

Front

What type of tide occurs when the Earth, Moon, and Sun form a 90-degree angle?

Back

A neap tide occurs in this arrangement.

Front

What is air resistance?

Back

Air resistance is a force that opposes the motion of an object through the air, causing lighter objects like feathers to fall more slowly than heavier ones.

Front

How does an electromagnet work?

Back

An electromagnet is magnetic when an electric current runs through it, unlike a regular magnet which is always magnetic.

Front

What are non-contact forces?

Back

Non-contact forces are forces that can act on an object without physical contact, such as gravity, magnetism, and electricity.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is a spring tide?

Back

A spring tide occurs when the Earth, Moon, and Sun are aligned, resulting in higher high tides and lower low tides.

Front

What is the role of magnetic fields?

Back

Magnetic fields exert forces on other magnets and magnetic materials without direct contact.