To be used in conjuction with the OALH Weight lesson
Do Now
Question 1
1.
Which of these is not a contact force: air resistance, friction, magnetic force, tension?
Question 2
2.
Define "contact force"
Question 3
3.
Describe the difference between a scalar and a vector quantity
Question 4
4.
Define "accurate"
Question 5
5.
Give this number to 2 significant figures: 8570
Question 6
6.
Explain why air resistance is a contact force
Key Knowledge
Question 7
7.
Define weight
Question 8
8.
Define gravity
Question 9
9.
State which direction gravity acts
Question 10
10.
Define mass
Question 11
11.
Recall the equation to calculate weight
Question 12
12.
Define weight
Question 13
13.
Define gravity
Question 14
14.
State which direction gravity acts
Question 15
15.
Define mass
Question 16
16.
Recall the equation to calculate weight
Question 17
17.
Define weight
Question 18
18.
Define gravity
Question 19
19.
State which direction gravity acts
Question 20
20.
Define Mass
Question 21
21.
Recall the equation to calculate weight
Recall Quiz
Question 22
22.
Question 23
23.
Question 24
24.
Question 25
25.
Question 26
26.
Question 27
27.
Question 28
28.
Question 29
29.
You do
Question 30
30.
An object has a mass of 30kg on Earth, where the gravitational field strength is 9.8N/kg
Calculate the object’s weight
Question 31
31.
An object has a mass of 690kg on Earth, where the gravitational field strength is 9.8N/kg
Calculate the object’s weight
Question 32
32.
An object has a mass of 3.55kg on Earth, where the gravitational field strength is 9.8N/kg
Calculate the object’s weight
Question 33
33.
An object has a mass of 4000g on Earth, where the gravitational field strength is 9.8N/kg
Calculate the object’s weight
Question 34
34.
An object has a mass of 560000g on Earth, where the gravitational field strength is 9.8N/kg. Calculate the object’s weight
Question 35
35.
An object has a mass of 6750000g on Earth, where the gravitational field strength is 9.8N/kg. Calculate the object’s weight
Question 36
36.
An object has a mass of 497.4g on Earth. Calculate the object’s weight.
Question 37
37.
An object has a mass of 240000mg on Earth. Calculate the object’s weight.
Question 38
38.
An alien has a weight of 700kN on a planet with a gravitational strength of 0.2N/kg. Calculate the mass of the alien on this planet. What will the mass of the alien be on Earth?
Question 39
39.
An object on Jupiter, where there is a gravitational field strength of 25N/kg has a weight of 2mN. Calculate the mass of the object, write your answer in standard form.
Question 40
40.
An object on a moon with a gravitational field strength of 0.006N/kg has a weight of 5.7kN. Calculate the mass of the object, write your answer in standard form.
Question 41
41.
A car is accelerating at 15m/s2 due to being pushed with a force of 120N. The car is on earth where the gravitational field strength is 9.8N/kg. Calculate the weight of the car.
Plenary
Question 42
42.
Define weight
Question 43
43.
Define gravity
Question 44
44.
Write the equation that links weight, mass and gravitational field strength
Question 45
45.
State the gravitational field strength on earth
Question 46
46.
Convert 250g to kg
The unit for weight is…
kilograms (Kg)
newtons (N)
grams (g)
Mass is…
How big an object is
The same as weight
the amount of matter in an object.
An object’s mass on earth is 10kg what will its mass be on the moon?
100kg
10kg
1kg
An object’s weight on earth is 100N what will its weight be on Saturn?
Smaller
The same
Larger
Weight is…
A force acting downwards due to gravity
The same as mass
How much you weigh
Gravity is…
The force of attraction between any two objects with weight
The pull towards the centre of earth
The force of attraction between any two objects with mass
A person falls towards the centre of earth because…
There is an attraction between their mass and the greater mass of earth
Of gravity
The force of attraction between any two objects with mass
An objects weight is larger on Jupiter than on earth because…
The mass of Jupiter is greater so the gravitational field strength is greater, so the force acting on the object is greater
The mass of Jupiter is greater so the gravitational field strength is smaller, so the force acting on the object is smaller
The mass of earth is greater so the gravitational field strength is greater, so the force acting on the object is greater