IGCSE Physics RO4/Ph2

Which of the following groups of physical quantities consist only of scalars?

• acceleration, force, velocity

• acceleration, mass, speed.

• force, time, velocity

• mass, speed, time

A car accelerates from traffic lights. The graph shows the car’s speed plotted against time.

How far does the car travel before it reaches a constant speed?

• 10 m

• 20 m

• 100 m

• 200 m

An object is pushed and then allowed to slide along a table.

The diagram shows the direction of the friction force acting on the object.

What is the effect of the friction force on the sliding object?

• It has no effect.

• It increases the object’s weight.

• It slows the object down.

• It speeds the object up.

A person of weight 600 N at the bottom of a mountain climbs to the top.

The gravitational field strength changes from 10.00 N / kg at the bottom to 9.97 N / kg at the top. His mass is unchanged as he climbs.

What are his mass and his weight at the top of the mountain?

• A

• B

• C

• D

Which graph represents the motion of a body falling vertically that reaches a terminal speed.

• 
• 
• 
• 

A skier walks from the bottom of a ski slope to the top and gains 10000 J of gravitational potential energy.

She skis down the slope. At the bottom of the slope, her kinetic energy is 2000 J.

How much energy is dissipated in overcoming friction and air resistance as the skier moves down the slope?

• 2000 J

• 8000 J

• 10000 J

• 12000 J

A person in a factory has to lift a box on to a shelf.

Which action involves the person doing the least amount of work?

• lifting the box quickly to the high shelf

• lifting the box slowly to the high shelf

• lifting the box to the low shelf first and then lifting it to the high shelf

• lifting the box to the low shelf instead to the high shelf

A uniform metre rule is balanced by a 4 N weight as shown in the diagram.

What is the weight of the metre rule?

• 1 N

• 4 N

• 16 N

• 40 N

Four cars are driven along a road.

The table shows the work done by the engine and the time taken by each car.

Which engine produces the most power?

• A

• B

• C

• D

The table shows how the extension of a spring varies with load.

Between which two loads would you find the limit of proportionality?

• 0 N and 2 N

• 8 N and 10 N

• 10 N and 12 N

• 14 N and 16 N