The ability to levitate objects like Luke sky-walker

Identifying Forces Quiz

2.

Elastic force is force is exerted by a material when it is stretched or compressed

True
False

Correct Answer

A. True

Explanation

The statement accurately describes elastic force as the force exerted by a material when it is stretched or compressed. Elastic force is a restorative force that causes the material to return to its original shape and size when the stretching or compression force is removed. Therefore, the correct answer is true.

Rate this question:

7

3.

Friction acts in a direction __________ to the direction of an object's motion

Unrelated
Opposite
Equal
Perpendicular

Correct Answer

A. Opposite

Explanation

Friction acts in the opposite direction to the direction of an object's motion. When an object is moving, friction always opposes its motion, trying to slow it down or stop it completely. This is because friction is a force that arises when two surfaces come into contact and resist each other's motion. Therefore, the correct answer is "opposite."

Rate this question:

5

4.

A (n) ______________ can cause an objects motion to change

Unbalanced force
Balanced force
Inertia
Mass

Correct Answer

A. Unbalanced force

Explanation

An unbalanced force can cause an object's motion to change because it refers to a force that is not counteracted by an equal and opposite force. When an unbalanced force acts on an object, it creates a net force that results in acceleration or deceleration, causing a change in the object's motion. This change can include a change in speed, direction, or both. In contrast, a balanced force refers to forces that are equal in magnitude and opposite in direction, resulting in no change in motion. Inertia and mass are properties of an object that affect its resistance to changes in motion but do not directly cause the motion to change.

Rate this question:

5

5.

A tension force is is the force that is transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends

True
False

Correct Answer

A. True

Explanation

The given statement is true. A tension force is indeed the force that is transmitted through a string, rope, cable, or wire when it is pulled tight by forces acting from opposite ends. This force is responsible for keeping the object or material in tension and preventing it from breaking or stretching.

Rate this question:

9

6.

Which of the following is NOT a type of force?

Gravitational
Magnetic
Heat
Electrostatic

Correct Answer

A. Heat

Explanation

Heat is not considered a type of force because it is a form of energy transfer, not a force that causes motion or changes in an object's state. Heat is the transfer of thermal energy from a hotter object to a cooler object, whereas forces are interactions between objects that cause them to accelerate or deform. Gravitational, magnetic, and electrostatic forces are all examples of forces that act on objects and can cause motion or changes in their state.

Rate this question:

6

7.

What are the units of force?

Kilogram
Centimetre
Joules
Newton

Correct Answer

A. Newton

Explanation

The units of force are measured in Newton. Newton is the SI unit of force and is defined as the amount of force required to accelerate a mass of one kilogram by one meter per second squared. It is named after Sir Isaac Newton, who made significant contributions to the study of mechanics and formulated the laws of motion.

Rate this question:

7

8.

This type of force is the support force exerted upon an object that is in contact with another stable object. It acts perpendicular to a surface.

Gravity
Normal
Magnetic
Tension

Correct Answer

A. Normal

Explanation

The correct answer is "Normal." The explanation for this is that the normal force is the support force exerted upon an object that is in contact with another stable object. It acts perpendicular to a surface, providing support and preventing the object from sinking into or falling through the surface. Gravity is the force of attraction between objects, magnetic force is the force exerted by magnets, and tension is the force transmitted through a string, rope, or cable when it is pulled tight.

Rate this question:

7

9.

Check all of the following forces that are examples of non-contact or action at a distance forces.

Gravity
Tension
Magnetic
Applied
Electrostatic

Correct Answer(s)

A. Gravity
A. Magnetic
A. Electrostatic

Explanation

The forces of gravity, magnetic, and electrostatic are examples of non-contact or action at a distance forces because they can exert their influence on objects without physical contact. Gravity is the force that attracts objects towards each other, such as the gravitational pull of the Earth on objects. Magnetic forces can attract or repel objects without direct contact, like the force between magnets. Electrostatic forces involve the attraction or repulsion of electrically charged objects, again without physical contact. These forces can act on objects even when there is empty space between them, demonstrating their non-contact nature.

Rate this question:

11

Identifying Forces Quiz

What is a force?

Quiz Preview

Elastic force is force is exerted by a material when it is stretched or compressed

Friction acts in a direction __________ to the direction of an object's motion

A (n) ______________ can cause an objects motion to change

A tension force is is the force that is transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends

Which of the following is NOT a type of force?

What are the units of force?

This type of force is the support force exerted upon an object that is in contact with another stable object. It acts perpendicular to a surface.

Check all of the following forces that are examples of non-contact or action at a distance forces.