8th Grade > Physics
FORCE AND PRESSURE MCQs
Total Questions : 56
| Page 5 of 6 pages
Answer: Option A. ->
The block will remain stationary.
:
A
As equal forces are acting on the block in opposite directions, the resultant force is zero. If there is no net force on the block, the state of motion of the block will not change and it will remain stationary.
:
A
As equal forces are acting on the block in opposite directions, the resultant force is zero. If there is no net force on the block, the state of motion of the block will not change and it will remain stationary.
Answer: Option A. ->
Muscular force
:
A
The archer stretches the string of the bow by applying muscular force. In the process, the shape of the bow changes.
:
A
The archer stretches the string of the bow by applying muscular force. In the process, the shape of the bow changes.
Answer: Option A. ->
kicked
:
A, B, and C
Any push or pull is called a force. Kicking, pushing and throwing are all examples of force being applied. However, staring doesn't involve any application of force.
:
A, B, and C
Any push or pull is called a force. Kicking, pushing and throwing are all examples of force being applied. However, staring doesn't involve any application of force.
Answer: Option B. ->
False
:
B
:
B
If a net force is applied on an object moving with some speed, in the direction of its motion, its speed increases. For example, for a ball dropped from a roof, direction of motion and direction of force are in the downward direction. The speed of the ball keeps increasing until it hits the ground.
Answer: Option A. ->
True
:
A
:
A
If a force is applied to a body, the shape of the body can change. For example, the length of an elastic band changes if it is pulled from both ends.
Answer: Option B. ->
pascal
:
B
The SI unit of pressure is pascal (Pa).
1 Pa=1 N/m2
:
B
The SI unit of pressure is pascal (Pa).
1 Pa=1 N/m2
Answer: Option B. ->
False
:
B
An object continues to be in its state of motion or rest until acted upon by an external force. A body changes its state of motion when a non-zero net force is acting on it.
:
B
An object continues to be in its state of motion or rest until acted upon by an external force. A body changes its state of motion when a non-zero net force is acting on it.
Answer: Option C. ->
Electrostatic force
:
C
:
C
Electrostatic force is the force which acts between charged particles at rest. This force can be repulsive or attractive in nature.
Answer: Option C. ->
Gravitational force
:
A, B, and C
The force that can act between two bodies without being in physical contact with each other is called non-contact force. Gravitational, magnetic and electrostatic forces are non-contact forces. Friction can act only when two surfaces are in contact and hence is a contact force.
:
A, B, and C
The force that can act between two bodies without being in physical contact with each other is called non-contact force. Gravitational, magnetic and electrostatic forces are non-contact forces. Friction can act only when two surfaces are in contact and hence is a contact force.
Answer: Option A. ->
True
:
A
:
A
Every object in the universe that has mass exerts a gravitational force on every other object having mass. Thus, the given statement is true.
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