WorksheetsGP1 Eval2 Force and Motion 17Dec21
Total questions: 20
Worksheet time: 20mins
A force is a push or a pull; it is a vector quantity which means it has ________ and direction
Distance
Magnitude
Number
Units
These are examples of non-contact forces except
Electrostatic force
Gravitational force
Magnetic Force
Push
These are examples of fundamental forces in nature except
electromagnetic force
electrostatic force
gravitational force
weak force
This is a vector quantity with the unit of kg-m/sec
(a)
The force that oppose a motion is called (a)
What is the mass of a body weighing 200N? Write your answer in correct significant figure.
(a)
Friction will occur in the following surfaces in contact except
Local deformation in the contact region
Molecular Attraction or local adhesion between materials
Smooth surfaces
Uneven or rough surfaces
A diagram of an object separated from its surroundings showing the magnitude and direction of forces acting on it.
(a)
The first laboratory apparatus which was used to verify Newton’s laws of motion
Accelerating masses
Atwood machine
pulley system
string connected in a pulley
The type of friction that prevents an object from moving is called _______ friction.
rolling
fluid
kinetic
static
A type of friction that occurs when air pushes against a moving object it to decelerate.
surface area
air resistance
velocity
gravity
What affect would decreasing the normal force between two objects have on the force of friction?
The force of friction would increase.
The force of friction would decrease.
The force of friction would remain the same.
The force of friction would disappear completely.
Draw the forces acting on a block of wood which is at rest on top of a table
Draw the forces acting on a block of wood being pulled up by a 200N force on a plane inclined at 30 o with respect to the horizontal.
The friction force and the normal force is related by this factor
coefficient of friction
coefficient of restitution
angle of inclination
none of the choices
The concept of normal force is based on
Law of Inertia
Law of Acceleration
Law of Action-Reaction
Law of Impulse
A 5 N force is applied to a 3 kg ball to slow it down from 9 m/s to 3 m/s. What is the impulse on the ball?
-2.5 N⋅s
-10 N⋅s
-18 N⋅s
-45 N⋅s
The one force which would have the same effect as all of the forces; the vector sum of the forces on the object is called (a)
