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DP1 S1 Megaquestionbank

Total questions: 65

Worksheet time: 2hrs 10mins

Name
Class
Date
1.

What does m stand for in mW

a)

milli

b)

mega

c)

micro

d)

nano

e)

många

2.

What as the gradient of a dist-time graph

a)

distance travelled

b)

velocity

c)

speed

d)

acceleration

e)

displacement

3.

What as the gradient of a displacement-time graph

a)

distance travelled

b)

velocity

c)

speed

d)

acceleration

e)

displacement

4.

What is area of dist-time graph?

a)

distance travelled

b)

velocity

c)

speed

d)

acceleration

e)

no physical meaning

5.

What is the area of a velocity-time graph

a)

distance travelled

b)

velocity

c)

speed

d)

change of displacement

e)

no physical meaning

6.

What is the gradient of a velocity-time graph

a)

distance travelled

b)

velocity

c)

speed

d)

acceleration

e)

no physical meaning

7.

What is 1mg equal to?

a)

1 x 10-3 kg

b)

1 x 10-6 kg

c)

1 x 10-9 kg

d)

1 x 10-2 kg

8.

How many MW are in a GW

a)

1x103

b)

1x106

c)

1x109

d)

1x1012

e)

100

9.

A ramp is inclined at 30 degrees to the horizontal. What is the component of the weight (mg) that is acting parallel to the ramp?

a)

mg cos 30

b)

mg sin 30

c)

mg tan 30

d)

mg arcsine 30

e)

mg arcosine 30

10.

In which of the following graphs below are both runners moving at the same speed?

a)
b)
c)
d)
11.
Which runner won the race?
a)
A
b)
B
c)
C
12.
At what time did runner A pass runner B?
a)
0 seconds
b)
1 second
c)
2 seconds
d)
3 seconds
13.

When does A and B have the same speed?

a)

0s

b)

2s

c)

3s

d)

4s

e)

never

14.

Suppose a cart has a kinetic energy of 2 J. If you add enough mass to double the mass and make the cart go three times as fast, its kinetic energy is now ---.

a)

6 J

b)

36 J

c)

18 J

d)

9 J

15.

A 6 kg block is pushed from rest to a velocity of 2m/s with a force of 5N. What is the work done by the force?

a)

6J

b)

3J

c)

12J

d)

15J

e)

30J

16.

This is the force against extension for a spring. What is the spring constant k?

a)

10 N/m

b)

10 N

c)

0.1 N/m

d)

0.1 N

e)

4 N/m

17.

A 2000kg car is driving at a constant speed of 10m/s against a frictional force of 50N. What is the power needed from the engine to do this?

a)

500 W

b)

50,000 W

c)

10,000 W

d)

1,000 W

e)

500,000 W

18.

There is a 4kg mass on a plane inclined at 30 degrees. What is the component of the weight that acts down (parallel to) the slope?

a)

40N

b)

40sin30

c)

40cos30

d)

4sin30

e)

4cos30

19.

There is a 4kg mass on a plane inclined at 30 degrees. What is the component of the weight that acts perpendicularly to the slope?

a)

40N

b)

40sin30

c)

40cos30

d)

4sin30

e)

4cos30

20.

There is a 4kg mass on a plane inclined at 30 degrees. What is the normal reaction to the slope?

a)

40N

b)

40sin30

c)

40cos30

d)

4sin30

e)

4cos30

21.

This is the force against extension for a spring. What is the spring constant k?

a)

10 N/m

b)

10 N

c)

0.1 N/m

d)

0.1 N

e)

4 N/m

22.

What is the work needed to stretch the spring from 0.2m to 0.4m?

a)

0.6 J

b)

1.6 J

c)

0.16 J

d)

0.8 J

e)

1.2 J

23.
Parkour Peter bends his knees upon landing in order to ____
a)
reduce his change in momentum
b)
increase his change in momentum
c)

increase his landing time

d)

increase his landing force

e)

decrease his impulse

24.

A 3 kg block is pushed from rest to a velocity of 2m/s with a force of 5N. What is the work done by the force?

a)

30J

b)

60J

c)

15J

d)

6J

e)

120J

25.

A block of mass M slides across a frictionless surface with velocity v until collides with a stationary block of mass m. If the two blocks stick together, what is their velocity after the collision?

a)

(M+m)v / m

b)

(M-m)v

c)

Mv / (M+m)

d)

(M-m)v / M

26.

Which law states that an object at rest stays at rest and an object in motion stays in motion unless an unbalanced force acts on it?

a)

1st Law

b)

2nd Law

c)

3rd Law

27.

A 1000kg car is driving at a constant speed of 10m/s against a frictional force of 50N. What is the power needed from the engine to do this?

a)

500 W

b)

50,000 W

c)

10,000 W

d)

1,000 W

e)

500,000 W

28.

1 1kg ball is rolling along a table top at 2m/s. It rolls off and drops 1.6m. What is the velocity (in m/s) when it hits the floor? Give answer to 1dp. Take g = 10 N/kg.

(a)  

29.

What is the acceleration during the first 10s?

a)

15 m/s

b)

15 m/s2

c)

1.5 m/s

d)

1.5 m/s2

30.

A cyclist travelling at a speed of 4.2 m s-1 accelerates at 1.1 m s-2. In a time of 7.4 s, the distance travelled is

a)

30 m

b)

35 m

c)

61 m

d)

91 m

31.

A freely falling object on Earth has a speed of 5.0 m s-1. After falling a further 20 m, its speed it

a)

15 m s-1

b)

20 m s-1

c)

25 m s-1

d)

45 m s-1

32.

A bus is travelling at a speed of 9.0 m s-1. It then accelerates at a rate of 0.75 m s-2 for a time of 8.0 s. What therefore is its final speed?

a)

6.0 m s-1

b)

15 m s-1

c)

17 m s-1

d)

21 m s-1

33.

The acceleration of free fall on a certain planet is 8.0 m s-2. An object gets dropped from a height and hits the ground after 1.5 s. From what height must the object have been dropped?

a)

6.0 m

b)

9.0 m

c)

11 m

d)

12 m

34.

A student is asked to solve the following problem:


An object is thrown upwards with a speed of 25 m s-1. How high will it be when the speed is 12 m s-1 ?


Which equation will allow the problem to be solved in a SINGLE calculation?

a)

s=ut+12at2s=ut+\frac{1}{2}at^2

b)

s=(u+v)t2s=\frac{\left(u+v\right)t}{2}

c)

v=u+atv=u+at

d)

v2=u2+2asv^2=u^2+2as

35.

An object drops off a pier. It takes 5 second to hit the water. How high is the pier above the water?

(Give the exact number of metres)

(a)  

36.

An stone is dropped into a well. It takes 7 seconds to hit the water. How deep is the well?

(Give the exact number of metres)

(a)  

37.

A stone is thrown vertically up from a cliff with a speed of 3m/s. It takes 5 second to hit the water. High high is the cliff above the water?

(Give the exact number of metres)

(a)  

38.

A car accelerates from rest with an acceleration of 4m/s2. What is it's velocity after 5 seconds.

(Give the exact number of metres per second)



(a)  

39.

A car moving at 20m/s accelerates with an acceleration of 4ms-2. What is it's velocity after 3 seconds.

(Give the exact number in metres per second)

(a)  

40.

A car moving at 25m/s decelerates with an acceleration of -4ms-2. What is it's velocity after 2 seconds.

(Give the exact number in metres per second)

(a)  

41.

A car moving at a velocity of 2m/s accelerates with an acceleration of 5m/s2. How long will it take to reach a velocity of 22m/s
(Give the exact number of seconds)



(a)  

42.

A car at rest accelerates with an acceleration of 5m/s2. How long will it take to reach a velocity of 20m/s
(Give the exact number of seconds)



(a)  

43.

A cyclist moving at 2m/s accelerates at 1.5m/s2. What will its velocity be when it has reached 20m?
(Give the exact velocity in m/s)



(a)  

44.

A car moving at 4m/s accelerates at 6m/s2. What will its velocity be when it has reached 20m?
(Give the velocity to nearest whole number in m/s)



(a)  

45.

A car at rest accelerates at 4m/s2. What will its velocity be when it has reached 10m?
(Give the velocity to nearest whole number in m/s)



(a)  

46.

A car moving at 10m/s accelerates at 1.5m/s2. What will its velocity be when it has reached 100m?
(Give the velocity to nearest whole number in m/s)



(a)  

47.
A substance that is originally a solid is heated strongly for some time.
At one stage, the energy given to the substance is used as latent heat of vaporisation. At this stage, what change does the energy cause? 
a)
It breaks the bonds holding the molecules together. Molecules escape from the liquid. 
b)
It breaks the bonds holding the molecules together. The solid becomes liquid. 
c)
It makes the molecules move faster but there is still a strong attraction between them. 
d)
It makes the molecules move faster and so the temperature rises. 
48.
An ice-cube has a mass of 7.50 g. The ice-cube is at 0 °C. Heat from the surroundings reaches the ice-cube at an average rate of 1.25 J / s. How long does it take for all of the ice to melt? (specific latent heat of fusion of ice = 333 J / g) 
a)
35.5s 
b)
55.5s 
c)
2000s 
d)
3120s 
49.
According to the kinetic theory, matter is made up of very small particles in a constant state of motion. Which row best describes the particle behaviour in the liquid state? 
a)
A
b)
B
c)
C
d)
D
50.
An ice pack is used to cool 0.25 kg of water. The specific heat capacity of water is 4.2 kJ / (kg °C). How much thermal energy (heat) must the ice pack extract from the water to reduce the water temperature by 15 °C? 
a)
0.070kJ 
b)
1.1kJ 
c)
16kJ 
d)
250kJ 
51.

In this graph 2kg of a substance is heated and the temperature changes. What is happening in section2 on the graph?

a)

KE increases

b)

PE increases

c)

PE constant

d)

KE constant

52.

In this graph 2kg of a substance is heated and the temperature changes. What is specific heat capacity of the liquid in Jkg-1K-1? (just write the number to the nearest whole number)

(a)  

53.

If the volume in the lab is 200m3, the air pressure is 1.00x105 Pa and the temp is 50 C. Find the approximate number of moles.

a)

8 000 moles

b)

4 000 moles

c)

12 000 moles

d)

16 000 moles

54.

In these formulae what is represented by N

a)

number of moles

b)

number of particles

c)

avogadro's number

d)

Boltzmann's constant

e)

The gas constant

55.

In these formulae what is represented by NA?

a)

number of moles

b)

number of particles

c)

avogadro's number

d)

Boltzmann's constant

e)

The gas constant

56.

When two bodies are next to each other and at the same temperature, we say they are in thermal (a)  

57.

A ball of mass m is thrown at a wall with speed u. After it strikes the wall, the ball bounces back with a speed v. What represents the magnitude of the force acting on the ball during the collision?

a)

m(u-v) / t

b)

m(v-u) / t

c)

m(u+v) / t

d)

0

58.

A sample of solid copper is heated beyond its melting point. The graph shows the variation of temperature with time. During which stage(s) is/are there an increase in the internal energy of the copper?

a)

P, Q and R.

b)

Q only

c)

P, and R only

d)

P and Q only

e)

Q and R only

59.

A sample of solid copper is heated beyond its melting point. The graph shows the variation of temperature with time. In section P what parts of the internal energy are changing?

a)

only the kinetic energy of the particles

b)

only the potential energy of the particles

c)

BOTH the kinetic AND potential energies of the particles

d)

NEITHER the potential NOR the kinetic energies of the particles

e)

it is not possible to tell from the graph

60.

If the temperature of a metal is 200K is heated so that the average velocity of the particles is doubled, what will the new temperature be?

a)

200K

b)

300K

c)

400K

d)

800K

e)

1600K

61.

Under what conditions does a real gas approximate to an ideal gas?

a)

low pressure

b)

moderate temperature

c)

low density

d)

high temperature

e)

high pressure

62.

A fixed quantity of an ideal gas is heated at constant volume. The best explanation(s) for the increase in pressure is that the molecules ...

a)

are colliding more frequently with each other.

b)

exert greater forces on each other.

c)

are colliding more frequently with the container walls.

d)

are moving faster.

e)

exert more force on the walls in each collision

63.
Temperature is a measure of the...
a)
total energy in a substance
b)
total kinetic energy in a substance
c)
average potential energy in a substance
d)
average kinetic energy of molecules in a substance
64.
What is 0oC in Kelvin?
a)
110 K
b)
100 K
c)
273 K
d)
210 K
65.

A 700 W electric heater is used to heat 1 kg of water without energy losses. The specific heat capacity of water is 4.2 kJ kg–1 K–1. What is the time taken to heat the water from 25 °C to 95 °C?

a)

7 s

b)

30 s

c)

7 minutes

d)

420 minutes

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