WS GRAVITY, MASS AND WEIGHT
NAME: _______________________________________
Q1. Complete these sentences
using some of the words
below:
MASS, WEIGHT, KILOGRAMS,
NEWTONS, NEWMANS,
FORCE, UPTHRUST, CONTACT
Q2. Explain why your weight
would be less on the Moon
(compared to the Earth)
____________ measures how much material an object is made of. It is
measured in ____________. Weight measures the _____________ of
gravity on an object. Because weight is a _______________ it is
measured in _______________.
Q3. Explain why your mass
would be the same on Earth
and on the Moon
To calculate the weight of something, you need to multiply its mass by the gravitational field strength
wherever you are:
Weight (N) = mass (kg) x Gravitational field strength (N/kg)
The gravitational field strength on earth is around 10 N/kg.
Q4. Use this information to fill in the gaps: Complete 1 at a minimum, 2 is expected, 3 is ideal
OBJECT
MASS
WEIGHT ON EARTH (Newtons)
7 kg
3N
750 N
Q5. Complete the following table (use your own mass): Complete 2 minimum, 4 expected, 6 is ideal
Planet
Mercury
Earth
Mars
Jupiter
Saturn
Neptune
Your mass (kg)
Gravitational field
strength (N/kg)
3.7
9.8
3.7
23.1
9.0
11.0
Your weight on the planet (N)
Q6. Recall the reason why
gravitational field strength is
different on different planets
Q7. Propose how you could
test this theory is correct using
the internet to undertake
basic research
Q8. Imagine that a hole could
be drilled right through the
earth from one side to the
other (See image below).
Imagine dropping a stone
down the hole. THINK!
Describe what would happen
to the stone