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WorksheetsChapter 14 - Forces & Pressure
Total questions: 11
Worksheet time: 7mins
When an object is moving at a constant speed,
there are not forces acting on the object.
forces acting on the object are too weak to affect the speed.
the forces acting on the object are equal and opposite in direction
the frictional force is less than the gravitational force acting on the object
Which of these affect the height of the tide along the coast during a spring tide?
I. Moon
II. Sun
III. Stars
I and II only
I and III only
II and III only
I, II and III
Which of these should not be designed so as to reduce friction?
The engine in a lorry
The shape of an aircraft’s wing
The hull of a speedboat
The disc brakes of a car
Which of these objects will be attracted to a magnet?
Aluminium foil
Copper pin
Brass nail
Steel paper clip
Which of these factors affects the pressure at the bottom of a liquid?
Density of the liquid
Volume of the liquid
Surface area of the liquid
Shape of the liquid’s container
The gravitational force on the moon is 1/6 that of the gravitational force on earth. Which of the following options listed about the mass and weight of a 600g object on the moon is correct?
(Assume 100g = 1N on earth.)
Mass on moon = 100g; Weight on moon = 1N
Mass on moon = 100g; Weight on moon = 6N
Mass on moon = 600g; Weight on moon = 1N
Mass on moon = 600g; Weight on moon = 6N
Which of these options show correct units for all quantities?
Force = kg; Friction = N; Pressure = N/m2
Force = N/m2; Friction = N/m2; Pressure = Pa
Force = N; Friction = N; Pressure = Pa
Force = N/m2; Friction = Pa; Pressure = N
What's the S.I. unit for weight?
Newton
Kilogram
Joules
Pascal
A boy must exert a minimum force of 20 N on a stationary toy car just to make it move. What is the most likely magnitude of frictional force that acts on the toy car?
0 N
10 N
20 N
40 N
Which of the following is the S.I. unit for speed?
km/h
m/s
km/s
m/h
Which of the following has the same value as 20 Pa?
0.002 N/cm2
0.2 N/cm2
2 N/cm2
20 N/cm2
