Application of Force

Q.

Explain different types of contact forces with help of examples and the diagram

Q.

Example of uniform retardation.

Q. The net force acting on a body is given by mass times the of the body.

1. velocity
2. acceleration
3. momentum

Q. Question 1
Which of the following statement is not correct for an object moving along a straight path in an accelerated motion?
(a) Its speed keeps changing
(b) Its velocity always changes
(c) It always goes away from the earth
(d) A force is always acting on it

Q. What is difference between Average speed and Non-uniform speed ?

Q.

Force can change the _________ and ________ of a moving body.

Q. Calculate the resultant force acting on the box.

1. 20 N right
2. 20 N left
3. 40 N left
4. 60 N right

Q. a bullet looses half of its speed while travelling 30 cm inside a wooden block.how much further will it travel before stopping?

Q.

When we apply the brakes on a moving scooter it will happen.

1. increase its speed.
   

2. change direction
   

3. stop

4. none of these

Q.

State three effects that a force can produce.

Q. A book of mass $980\text{g}$ is placed on a table. Calculate the force exerted on the book in gravitational metric system in $\text{kgf}$.

1. 0.98

Q. When a horse pulls a wagon, the force that causes the horse to move forward is the force:

1. the ground exerts on it
2. it exerts on the ground
3. it exerts on the wagon
4. the wagon exerts on it

Q. To move a loaded trolley we have to pull or push it.
State true or false.

Q. A car accelerates on a horizontal road due to the force exerted by

1. The car on earth
2. The driver of the car
3. The road on the car
4. The engine of the car

Q. If two bodies are moving with the samr velocity then with respect to each other in which state are they? Rest Or Motion

Q. If the moment of force acting on the pivot is $900\text{dyne-m}$, calculate the force applied.

1. 600

Q.

Mention any two effects of force.

Q. The gravitational unit of force in the metric system is

1. N
2. None of these
3. kg wt
4. g wt

Q. A book of mass $980\text{g}$ is placed on a table. Calculate the force exerted on the book in gravitational metric system in $\text{kgf}$.

1. 0.98

Q.

Which of the following is an effect of the force.

1. Starts motion

2. Change the direction of motion

3. Stops motion

4. All of them

Q. A book of mass $980\text{g}$ is placed on a table. Calculate the force exerted on the book in gravitational metric system in $\text{kgf}$.

1. 0.98