Worksheets7.1 Planetary Motion & Gravitation ม5
Total questions: 10
Worksheet time: 3mins
Name
Class
Date
1.
What shape is Earth's orbit?
a)
circle
b)
ellipse
c)
square
d)
spiral
2.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
3.
Gravity is increased with...
a)
greater mass & shorter distance
b)
greater mass & farther distance
c)
lower mass & shorter distance
d)
lower mass & farther distance
4.
An ellipse is drawn around two points called
a)
aphelion
b)
perihelion
c)
foci
d)
axis
5.
When a planet orbits the Sun, one of the foci of the elliptical orbit is
a)
the axis
b)
the perihelion
c)
the center
d)
the Sun
6.
Where is the planet moving faster
a)
Position A to B
b)
Position B to C
c)
Position H to I
d)
Position I to J
7.
Which of the following is Newton's Law on Gravitation?
a)
F=Gm1m2/r
b)
F = Gm1m2/r2
c)
F = Gm1m2/2r
d)
F = m1m2/2r
8.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance
b)
mass and matter
c)
distance and weight
d)
weight and mass
9.
Force of gravity is inversely proportional to
a)
Mass
b)
Weight
c)
Distance
d)
Time
10.
What happens to Gravitational force if I double both of the masses but don't change their distance?
a)
doubles
b)
half as big
c)
4x bigger
d)
4x smaller
100 %
