Forces in the Body

Label the forces acting in this picture.

a

b

c

d

normal

gravity

applied force

tension

Tags

6-8.AG.7.1

Which of the following is an example of a plant responding to the external stimulus of gravity?

• A seedling growing towards a sunny window.

• Plant roots growing down into the soil.

• Flowers producing nectar to attract bees.

• A potted plant wilting when it dries out.

What statements describe how force affects the motion of blood during a heartbeat?

• Statements 1 and 3

• Statements 2 and 3

• Statements 1, 2, and 3

• Statements 2, 3, and 4

Tags

NGSS.MS-PS2-1

Which of the following forces is primarily responsible for the movement of blood through the circulatory system?

• Gravitational force

• Electromagnetic force

• Hydraulic force

• Muscular force

What type of force is exerted by muscles when lifting a weight?

• Tensile force

• Compressive force

• Shear force

• Frictional force

When you bend your elbow, which type of lever is your arm acting as?

• First-class lever

• Second-class lever

• Third-class lever

• Fourth-class lever

Which force is responsible for maintaining the posture of the human body against gravity?

• Tension force

• Normal force

• Frictional force

• Elastic force

Tags

NGSS.MS-PS2-4

In the context of biomechanics, what is the role of tendons in the body?

• Transmit forces from muscles to bones

• Store energy during movement

• Protect joints from damage

• Provide nutrients to muscles

How does the body reduce the impact force when jumping from a height?

• By increasing the surface area of contact

• By bending the knees upon landing

• By tensing the muscles

• By holding the breath

Tags

NGSS.MS-LS1-3

Which of the following best describes the force exerted by the heart to pump blood?

• Centripetal force

• Centrifugal force

• Hydrostatic force

• Dynamic force