1. Gravity, pp 14, 15
Drive, February 2015
Listen and fill in the gaps.
Gravity is, very simply, a ________________ that pulls two objects towards each other. We
can see it when we drop a pen and it ________________ down to the ground, not up. In this
case, one object is the pen and the second is _______________. Gravity is essential for life on
Earth. The Sun's gravitational _______________ keeps our planet orbiting the Sun, which
means we don't fly away! Also the _______________, Earth's only natural satellite, is
affected by the gravity of the Sun and the Earth. On the other hand, the Moon's gravity
_______________ on Earth and this makes the tides _______________ and fall every day.
----------------------------------------------------------------------------------------------------------------------------------
2. Gravity, pp 14, 15
Drive, February 2015
Complete the text with:
force, Earth, weightless, Sun, gravity, zero, simulated, defined,
The Moon orbits the ______________and the Earth orbits the _______________. This is caused
by the _______________. It is _______________ that pulls two objects towards each other. The
first person who ______________ gravity was Isaac Newton. In space, there is
_______________ gravity, which means you are _______________. Lower gravity, similar to
the Moon’s, can be ________________ in parabolic flights.
----------------------------------------------------------------------------------------------------------------------------------
3. Gravity, pp 14, 15
Drive, February 2015
Look at the table and answer the questions.
Planet
Your weight
Earth
65.kg
The Moon
10.7kg
Venus
58.9kg
Jupiter
153.6kg
Which planet/ satellite has the strongest gravity?
_________________________________
Which planet/ satellite has the weakest gravity?
__________________________________
SOLUTIONS
1. Gravity, pp 14, 15
Drive, February 2015
Listen and fill in the gaps.
Gravity is, very simply, a force that pulls two objects towards each other. We can see it when
we drop a pen and it falls down to the ground, not up. In this case, one object is the pen and
the second is Earth.
Gravity is essential for life on Earth. The Sun's gravitational pull keeps our planet orbiting the
Sun, which means we don't fly away! Also the Moon, Earth's only natural satellite, is affected
by the gravity of the Sun and the Earth. On the other hand, the Moon's gravity pulls on Earth
and this makes the tides rise and fall every day.
----------------------------------------------------------------------------------------------------------------------------------
2. Gravity, pp 14, 15
Drive, February 2015
Complete the text with:
force, Earth, weightless, Sun, gravity, zero, simulated, defined,
The Moon orbits the Earth and the Earth orbits the Sun. This is caused by gravity. It is the
force that pulls two objects towards each other. The first person who defined gravity was
Isaac Newton. In space, there is zero gravity, which means you are weightless. Lower gravity,
similar to the Moon’s, can be simulated in parabolic flights.
----------------------------------------------------------------------------------------------------------------------------------
3. Gravity, pp 14, 15
Drive, February 2015
Look at the table and answer the questions.
Planet
Your weight
Earth
65.kg
The Moon
10.7kg
Venus
58.9kg
Which planet/ satellite has the strongest gravity?
Jupiter
Which planet/ satellite has the weakest gravity?
The Moon
Jupiter
153.6kg