WorksheetsFirst Unit Test in Grade 8 Science
Total questions: 10
Worksheet time: 20mins
It is a push or a pull exerted on an object.
Force
Motion
Newton
Friction
The following are fundamental force except:
Friction
Electromagnetic force
Gravity
Strong nuclear force
It is a fundamental force that binds the solar system.
Weak nuclear force
Gravity
Electromagnetic force
Strong nuclear force
This is a force that is in physical contact between two objects.
Contact forces
Full-contact forces
Non-contact force
None of the above
It can be relating to change in position.
Motion
Displacement
Force
Mass
The weight of a person on Earth is 490 N. What is his weight in a planet where the acceleration due to gravity is 10 times greater than that of Earth?
49 N
490 N
4900 N
5000 N
A force of 5 N accelerates a mass by 2 m/s^2. What will be the acceleration if the force and mass were increased to twice their original values?
1 m/s^2
2 m/s^2
4 m/s^2
8 m/s^2
Which of the following is
not true about sliding friction?
It may be reduced by using
lubricant.
It is due to the
roughness of surfaces in contact.
It is present whenever two
bodies are in contact.
It is present
only when bodies in contact are moving
or have a tendency to move.
The constant velocity
attained by a falling body when its weight equals air resistance is called _______________.
impact velocity
terminal velocity
average velocity
instantaneous velocity
What law shows the need to
use seat belt?
Law of Inertia
Law of Interaction
Law of Acceleration
Impulse Momentum Theorem
