FREE HESI Physics Questions and Answers

Question 1

A student observes that increasing the mass of an object increases the force needed to move it. What scientific law best explains this?

Accepted Answer

Newton's Second Law

Answer

Newton's First Law

Answer

Law of Conservation of Energy

Answer

Hooke's Law

Question 2

A ball is thrown straight up. What is the direction of its acceleration at the top of its path?

Accepted Answer

Downward

Answer

Upward

Answer

Zero

Answer

Forward

Question 3

Why does a metal spoon feel colder than a wooden spoon at the same room temperature?

Accepted Answer

Metal is a better conductor of heat

Answer

Metal is denser

Answer

Wood contains air pockets

Answer

Wood has more atoms

Question 4

If you double the velocity of an object, what happens to its kinetic energy?

Accepted Answer

It quadruples

Answer

It stays the same

Answer

It doubles

Answer

It halves

Question 5

Which situation best demonstrates the law of conservation of momentum?

Accepted Answer

Two skaters push off each other and roll away

Answer

A battery powers a toy car

Answer

A ball stops due to friction

Answer

A book falls off a table

Question 6

What type of energy is stored in a compressed spring?

Accepted Answer

Elastic potential energy

Answer

Thermal energy

Answer

Kinetic energy

Answer

Gravitational energy

Question 7

A mirror reflects light to form a clear image. Which principle does this demonstrate?

Accepted Answer

Reflection

Answer

Refraction

Answer

Diffraction

Answer

Absorption

Question 8

What happens to the current in a circuit if the resistance increases while voltage stays the same?

Accepted Answer

Current decreases

Answer

Current increases

Answer

Current remains unchanged

Answer

Voltage decreases

Question 9

Why does a helium balloon rise in air?

Accepted Answer

It is lighter than air

Answer

It repels gravity

Answer

It has magnetic properties

Answer

It heats up the air around it

A student observes that increasing the mass of an object increases the force needed to move it.What scientific law best explains this?