Forces in the Body

In the simplest terms, a force is ...

• an object that can not be stopped

• something that keeps our feet on the ground

• a push or pull that happens when two objects interact

• another word for gravity

What organ in the body is responsible for the force needed to move blood throughout the body to supply animals with oxygen and nutrients?

• Lungs

• Stomach

• Heart

• Brain

What does Newton's 1st Law of Motion state?

• An object at rest will stay at rest, and an object in motion will stay in motion at a constant speed and direction unless acted on by an outside force

• An object at rest will stay at rest, and an object in motion will slow down and eventually stop

• An object at rest will start moving, and an object in motion will change its speed and direction

• An object at rest will start moving, and an object in motion will stay in motion at a constant speed and direction

Answer explanation

Newton's 1st Law of Motion, also known as the Law of Inertia, states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant speed and direction unless acted on by an outside force. This law emphasizes the resistance of an object to change its current state, be it rest or motion.

Tags

6.MS-PS2-4

Which of the following demonstrates an organ providing a force?

• The eye transmits information to the brain.

• The heart contracts and expands to move blood.

• The kidney filters waste from blood.

• The skin protects other organs from damage.

Label the forces acting in this image.

a

c

d

b

normal force

friction

gravity

applied force

Tags

6-8.AG.7.1

What is the primary force that allows muscles to move bones in the human body?

• A) Tension

• B) Compression

• C) Shear

• D) Torsion

Which type of force is exerted by the heart to pump blood throughout the body?

• A) Gravitational force

• B) Magnetic force

• C) Muscular force

• D) Frictional force

Tags

NGSS.MS-LS1-3

What role do tendons play in the musculoskeletal system?

• A) They connect bones to other bones.

• B) They connect muscles to bones.

• C) They provide cushioning between bones.

• D) They produce red blood cells.

How does the diaphragm contribute to breathing?

• A) By creating a vacuum that pulls air into the lungs

• B) By pushing air out of the lungs

• C) By filtering air before it enters the lungs

• D) By warming the air before it enters the lungs

What is the force that opposes the movement of joints in the human body?

• A) Friction

• B) Gravity

• C) Tension

• D) Compression