CAST Science Practice Test

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd Law states that the acceleration of an object depends on the net force acting upon it and the object's mass. It can be expressed with the formula: F = ma (Force = mass x acceleration).

Front

What is a group in the periodic table?

Back

A group is a vertical column in the periodic table that contains elements with similar chemical properties.

Front

Which planet is closest to the Sun?

Back

Mercury is the planet closest to the Sun and is known for having the highest temperatures.

Front

What does it mean for forces to be balanced?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion of the object.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, causing it to slow down or stop.

Front

What is the Law of Inertia?

Back

The Law of Inertia, or Newton's 1st Law, states that an object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by a net external force.

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 acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can occur as an increase or decrease in speed.

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 a period in the periodic table?

Back

A period is a horizontal row in the periodic table, indicating elements with increasing atomic number.