11 mark
On Mars the gravitational field strength is 4.0 N/kg.
How much would a 60 kg person weigh on Mars?
Use the equation: weight = mass × gravitational field strength
15 N
64 N
240 N
600 N
Did this page help you?
Forces in Action (OCR Gateway GCSE Physics: Combined Science)
Exam Questions
36 mins11 questions
21 mark
On the Moon the gravitational field strength is 1.6 N/kg.
Calculate the gravity force for an 80 kg astronaut.
Use the equation: gravity force = mass × gravitational field strength
50 N
128 N
800 N
1280 N
Did this page help you?
11 mark
A student sets up two cogs.
Cog A has 10 teeth and cog B has 20 teeth.
Cog A is turned 2 times.
How many times does cog B turn?
0.5 times
1 time
2 times
20 times
Did this page help you?
21 mark
A uniform 1.0 m rod is pivoted at its centre.
The rod is in equilibrium.
What is the anti-clockwise moment about the pivot?
10 N m
15 N m
40 N m
100 N m
Did this page help you?
31 mark
An elephant has a weight of 60 kN. Its four feet have a total area of 0.75 m2 in contact with the ground.
Calculate the total pressure the elephant exerts on the ground.
Use the equation: pressure = force normal to a surface ÷ area of that surface
45 Pa
80 Pa
45 000 Pa
80 000 Pa
Did this page help you?
11 mark
The graph shows the relationship between mass and weight on two different planets.
The weight of an object on planet X is 3.0 N.
What is the weight of the same object on planet Y?
1.5 N
2.0 N
4.0 N
6.0 N
Did this page help you?
21 mark
The diagram shows 3 gears.
Gear X is rotated clockwise at 1.0 rotations per second.
Which row describes the movement of gear Z?
| Direction of rotation |
Rotations per second |
|
| A | anticlockwise | 0.5 |
| B | anticlockwise | 2.0 |
| C | clockwise | 0.5 |
| D | clockwise | 2.0 |
Did this page help you?