Worksheetsphysics matriculation
Total questions: 39
Worksheet time: 27mins
Name one type of collision::
inertia
elastic
plastic
momentum
What is the formula for momentum?
p=av
p=mv
p=iv
p=kt
momentum can be transferred from one object to another
true
false
solve for momentum! .004kg and 600m/s
2.0
2.4
solve for momentum! .14kg and 30m/s
4.2
4.8
solve for momentum! 3,000kg and 8,000m/s
23,000,000
24,000,000
what is the formula for impulse?
F=IT
I=FT
What happens when two forces act in the same direction?
They cancel each other out.
The stronger one prevails.
Their strengths are added.
Their sum divided by two is the total force.
The greater the mass of an object,
the easier the object starts moving.
the greater its inertia.
the more balanced it is.
the more space it takes up.
The force of gravity on a person or object on the surface of a planet is called
mass.
weight.
terminal velocity
free fall.
The force that one surface exerts on another when the two rub against each other is called
a. c.
b.. d. .
friction.
inertia.
acceleration
gravity
The law of universal gravitation states that any two objects in the uni-verse that have mass, without exception,
attract each other.
repel each other.
combine to provide a balanced force.
create friction
Forces can be added together only if they are
acting on the same object
unaffected by gravity
balanced forces
substantial
According to the law of conservation of momentum, when two objects collide in the absence of outside forces,
velocity decreases
velocity increases
the objects have the same momentum before and after they collide.
the objects have more momentum after they collide than they did before.
According to the law of conservation of momentum, when two objects collide in the absence of outside forces,
velocity decreases
velocity increases
the objects have the same momentum before and after they collide.
the objects have more momentum after they collide than they did before.
Any force that causes an object to move in a circle is called a(n)
balanced force
gravitational force.
unbalanced force
centripetal force
The momentum of an object is in the same direction as its
force.
velocity.
acceleration.
inertia.
What type of interaction is a gravitational force?
Attractive and repulsive
Repulsive
Attractive
No interaction exist
An apple is hangs on a tree on the earth, Which of the following statements is correct about the interaction between the apple and the earth?
The force on the apple is greater that the force on the Earth
The force on the apple is equal to the force on the earth
The force on the Earth is larger than the force on the apple
The forces on the apple and the earth are zero because they are not touching each other
Two objects are attracted to one another by a strength of force F. If one mass doubles and the other is tripled, what is the new gravitational force between the objects in terms
of F?
4F
6F
1/9 F
1/6 F
The definition of gravitational field strength is:
The region of space surrounding a charge where other charges will feel an repulsive force due to it.
The region of space surrounding a body where other bodies will feel an repulsive force due to it.
The region of space surrounding a charge where other charges will feel an attractive force due to it.
The region of space surrounding a body where other bodies will feel an attractive force due to it.
Mass of Earth when it's radius is 6400 km and gravitational field strength is 9.81 N kg-1 is
5 × 1023 kg
6.0 × 1024 kg
40 × 109 kg
9 × 1024 kg
As distance increases, value of gravitational field strength
also increases
decreases
remains constant
may increase or decrease
As distance increases, value of gravitational field strength
also increases
decreases
remains constant
may increase or decrease
The minimum velocity required to leave the atmosphere is called the...
orbital velocity
ejection velocity
escape velocity
terminal velocity
A geostationary satellite orbits the Earth....
once every 24 hours
once every week
once every 10-11 hours
once every 4 weeks
The earth revolves around the sun with an angular velocity of 2×10-7rad/s in a circular orbit of radius 1.5×108km. The force exerted by the sun on the earth is.....(Mass of earth =6x1024 kg)
36×1021 N
27×1039 N
Zero
18×1025 N
The radius of the earth is 6.38 × 106 m. Find the orbital velocity of a satellite if it orbited 8.50 × 104 m above the surface of the earth.(Mass of earth=6x1024 kg)
6.17 × 1015 m/s
3.49 × 102 m/s
7.87 × 103 m/s
7.28 × 107 m/s
