# o level physics forces quiz one

#### Quiz Description

In this physics quiz, we shall be studying forces. Under forces, we will cover the definition of a force, the various types of forces, the effects of forces, and their analysis. This section is highly applicable in mechanics, hence, making this quiz very relevant to your physics studies.

A force can be defined as a push or a pull exerted on a body or object. It is a vector quantity because it has a magnitude and it is always directed. A force can pull, push, cut, extend, compress or destroy an object. There are two main types of forces which are: Action-at-a-distance (non- contact) force and contact force. An action-at-a-distance force is that force that exists between two bodies that are not in touch or physical contact. Some examples are electrostatic, magnetic, and gravitational forces. On the other hand, a contact force is that force between two bodies that are in touch or physical contact. Examples are frictional force, normal reaction, upthrust force, etc

As said earlier, if you are determined to be good at physics, then you need to practice more on topics like this. You need not to worry about that because this quiz has that covered. Good luck as you practice with us.

Which of the following is a non-contact force?

Correct
• Tension
• weight
• upthrust
• Friction

Which of the following is a non-contact force?

Correct
• Tension
• weight
• upthrust
• Friction

Which of the following are all vectors?

Correct
• force, distance, momentum
• weight, displacement, speed
• velocity, weight, displacement
• Mass, distance, force

which of the following quantities below is defined as the product of the force and perpendicular distance from the pivot?.

Correct
• Moment
• Momentum
• Work done
• Couple

A car of mass 6000 kg is at rest or moving with uniform velocity is a straight line, the unbalance force acting on it is...?

Correct
• 60000 N
• 0 N
• 600 N
• 5990 N

How long will it take a body accelerating at 2m/s to change its velocity from 5m/s to 12m/s?.

Correct
• 3.5s
• 3.0s
• 2.5s
• 120s

The unit for work done is ?

Correct
• newton-meter
• watt
• Joule
• newton

The unit for work done is ?

Correct
• Newton-meter
• Watt
• Air resistance
• Speed

Action and reaction are equal and opposite but do not give a resultant of zero because?

Correct
• The forces do not balance
• The forces do not act on thesame subject
• The forces do not act on the same plane
• The forces are in equilibrium

Which of the following is  a pair of vector quantities?

Correct
• Displacement and momentum
• Momentum and velocity
• Acceleration and density
• Weight and speed

Which of the following laws explains the use of seat belts for safely in cars?.

Correct
• Law of action and reaction
• Newton's first law
• Law of the conservation of momentum
• Pressure law

The force of attraction between two oppositely charged bodies can be increased by ?

Correct
• increasing their separation
• reducing their separation
• placing an insulator between them
• placing a conductor between them

Which of the following is not a contact force?.

Correct
• Drag
• Friction
• Electrostatic
• Upthrust

Forces that always opposes motion between two surfaces in contact is term as ?

Correct
• Weight
• Friction
• Tension
• Resistance

If no force is applied to a moving object, it will stop due to?

Correct
• Backward force
• Gravity
• Friction
• Magnetic force