Physics Worksheet
ADVERTISEMENT
1
2
3Name: ________________________________
Mark: _____/ 60
Percentage mark: ______/ 100
1. Explain why a block of wood floats on water while one made of iron sinks.
(2)
……………………………………………………………………………………………………………..
2. Define the term centre of gravity. ………………………………………………………..…………...
(2)
3. Explain how the volume of an irregularly shaped object can be found.
……………………………………………………………………………………………………………..
……………………………………………………………………………………………………………..
(3)
……………………………………………………………………………………………………………..
3
4. A large iron nail has a mass of 23.7 g and a volume of 3 cm
.
a. Calculate its density. ………………………………………………………………………………
(2)
(1)
b. Underline the correct answer: A smaller iron nail would have (the same, a different) density.
5. Label the forces in each diagram.
A
(8)
C
B
D
D =
C =
A =
B =
E
G
H
F
H =
G =
E =
F =
2
2
6. a. The acceleration of gravity on Earth is 10 m/s
while that on the moon is 1.7 m/s
. On Earth the
astronaut has a mass of 80 kg. State or work out the:
(i) mass of the astronaut on the moon. ............................................................................................ (1)
(ii) weight of the astronaut on Earth
........................................................................................... (1)
(iii) weight of the astronaut on the moon ......................................................................................... (1)
2
b. Calculate the acceleration due to gravity (in m/s
)on planet Mars if a space probe of mass 400
kg has a weight of 1600 N.
.............................................................................................................................................................(2)
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education