WorksheetsSTEM C GENERAL PHYSICS 1 QUIZ 1.1
Total questions: 25
Worksheet time: 1hrs 16mins
Name
Class
Date
1.
What does Newton’s Universal Law of Gravitation state?
a)
Every particle attracts every other particle with a force proportional to the product of their masses
b)
Only big objects are affected by gravity
c)
Gravity only works when 2 objects are touching one another.
d)
Every object on Earth has the same weight
2.
According to Kepler's First Law, the path of planets around the sun follows a/an ______________ shape.
a)
circle
b)
curved line
c)
diagonal line
d)
ellipse
3.
You are assigned by the European Space Agency (ESA) to design a probe that will orbit Mars in a perfect circular path. To ensure that the probe remains in a stable orbit without speeding up or slowing down, what must be true about the relationship between the gravitational force and the centripetal force acting on the probe?
a)
The gravitational force must be smaller than the centripetal force.
b)
The gravitational force must be greater than the centripetal force.
c)
The gravitational force must be equal to the centripetal force.
d)
The gravitational force and centripetal force must cancel each other out.
4.
Based on Newton’s Law of Universal Gravitation, how does the gravitational force between two bodies depend on their separation?
a)
It increases with the square of the distance between them.
b)
It decreases with the square of the distance between them.
c)
It remains constant regardless of their masses.
d)
It becomes stronger as the distance between them increases.
5.
What causes Earth to have a gravitational field?
a)
Its heat
b)
its mass
c)
its speed
d)
its rotation
6.
The gravitational field strength at Earth’s surface would double if which of the following occurred?
a)
Earth’s mass became twice as large while its radius remained constant.
b)
Earth’s radius doubled while its mass stayed the same.
c)
Both Earth’s mass and radius doubled.
d)
Earth’s mass was cut in half while the radius stayed constant.
7.
An object’s gravitational potential energy increases under which of the following conditions?
a)
When it stays at the same height
b)
When it is lifted to a greater height above the ground
c)
When it is lowered closer to the ground
d)
When it touches the ground
8.
Two objects, Object A and Object B, are separated by a distance 𝑟. If the mass of object A is doubled and the distance between them is halved, how will the gravitational force between them change compared to the original force?
a)
It will become 2 times greater
b)
It will become 8 times greater
c)
It will become 16 times greater
d)
It will become 2 times lesser
9.
On which planet would an object experience twice the gravitational field strength?
a)
On Planet A, which has twice the mass of Planet B but the same radius
b)
On Planet B, which has half the mass of Planet A but the same radius
c)
On both planets, since they have the same radius
d)
On neither planet, because gravitational field strength depends only on radius
10.
Why does a spacecraft need less fuel to escape from the Moon than from Earth?
a)
Because the Moon’s smaller mass produces a weaker gravitational pull
b)
Because gravity does not exist in space
c)
Because the Moon’s gravity is stronger than Earth’s
d)
Because the spacecraft’s mass becomes smaller on the Moon
11.
If two objects are separated by 3 meters and experience a gravitational force of 4.89 × 10⁻⁹ N, which of the following could be their respective masses?
a)
20 kg and 35 kg
b)
5 kg and 10 kg
c)
15 kg and 25 kg
d)
10 kg and 30 kg
12.
The point in a planet's orbit that is nearest to the sun is called ____________
a)
Apogee
b)
Perigee
c)
Aphelion
d)
Perihelion
13.
According to Newton's Law, if the distance between objects doubles, the gravitational force becomes ____________
a)
The same
b)
Twice as strong
c)
One-half as strong
d)
One-Fourth as strong
14.
Which of the following statements best describes Kepler's First Law of Planetary Motion?
a)
Planets move in perfect Circles around the sun
b)
Planets move in elliptical Orbits with the sun at one focus.
c)
The speed of planet is constant throughout its orbit
d)
The period of planets orbit is proportional to the square of its distance from the sun
15.
Which of the following is a fundamental property of gravitational force?
a)
It requires a medium to act
b)
It only acts on objects with large mass
c)
It always exists between any particles with mass
d)
It is strongest at large distances
16.
What is the gravitational force between two objects of mass m1= 20kg and m2= 30kg placed 3 meters apart?
a)
4.45 x 10 ^⁻9 N
b)
3.15 x 10 ^⁻9 N
c)
2.45 x 10 ^⁻9 N
d)
3.45 x 10 ^⁻10 N
17.
What happens to your weight if the mass of the earth suddenly doubles but its radius stays the same?
a)
Your weight stays the same
b)
Your weight doubles
c)
Your weight quadruples
d)
Your weight becomes zero
18.
Two objects with masses of 25 kilograms and 40 kilograms are placed 2 meters apart. What is the approximate gravitational force acting between them?
a)
1.67 × 10⁻⁸ N
b)
2.50 × 10⁻⁸ N
c)
3.34 × 10⁻⁸ N
d)
4.00 × 10⁻⁸ N
19.
Which of the following situations best demonstrates the presence of a gravitational field?
a)
A satellite remaining in orbit around Earth.
b)
A balloon rising because it is filled with helium.
c)
A magnet attracting iron nails.
d)
Two like electric charges pushing away from each other.
20.
What does a gravitational field represent?
a)
The path followed by a planet around a star
b)
The total mass of a planet
c)
The region around a mass where a gravitational force is experienced
d)
The kinetic energy of a moving object
21.
What does gravitational potential energy depend on?
a)
Mass, velocity, and distance
b)
Mass, acceleration, and time
c)
Mass, gravity, and height
d)
Mass, temperature, and volume
22.
Consider three points: A (on Earth’s surface), B (on a mountain), and C (in a satellite orbit far above Earth). At which point is the gravitational field strength the weakest?
a)
Point A — on Earth’s surface
b)
Point B — on the mountain
c)
Point C — in the satellite orbit
d)
They are all equal
23.
Two planets, X and Y, have the same radius. Planet X is twice as massive as Planet Y. If identical objects are placed on each planet’s surface, how will their weights compare?
a)
The object weighs more on Planet Y.
b)
The object weighs the same on both planets.
c)
The object weighs twice as much on Planet X.
d)
The object weighs half as much on Planet X.
24.
Kepler’s Third Law relates the planet’s orbital period and the ______ of its orbit.
a)
circumference
b)
mass
c)
semi-major axis
d)
radius
25.
According to Kepler’s Second Law, a planet moves:
a)
at a constant speed in its orbit
b)
faster when closer to the Sun and slower when farther away
c)
slower when closer to the Sun
d)
at random speed
100 %
