Practise Questions chapter 2

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• Leerjaar 3

Practise Questions Chapter 2

Which consequences does the racket experience as a result of the ball?

1. Plastic deformation
2. Elastic deformation
3. Change of direction
4. Change of speed

Four students are doing a tug of war.
Marlon and Josh both pull to the left with a force of 500 N, Nynke pulls to the right with a force of 400 N and Melek pulls to the right with a force of 150 N.
Two claims are made:
I Marlon and Josh win,
II The resultant force is 50 N.
Which is correct?

1. Claim I
2. Claim II
3. Both
4. None

If you compare Jupiter to the earth the following rule applies;

1. The mass remains the same
2. The weight remains the same
3. The mass is bigger on Jupiter
4. The weight is bigger on Jupiter

Engine Force

Friction

Force of gravity

The weight is a force. Which is the unit of force?

1. kg
2. N
3. F

How can you calculate the force of gravity

1. Fg = mass x weight
2. Weight = Fg x Mass
3. Fg = weight
4. Fg= mass x 9,6

A bag of potatoes whith a mass of 50 kg has a weight of ...... N

1. 250
2. 500
3. 200
4. 400

A plane is standing still on the ground. What can you say about the resulting force?

1. The resulting force is directed towards the front.
2. The resulting force is directed towards the back.
3. The resulting force is 0 N
4. Nothing

A plane is flying with a constant speed through the air. What can you say about the resulting force?

1. The resulting force is directed towards the front.
2. The resulting force is directed towards the back.
3. The resulting force is 0 N
4. Nothing

In which direction is the resulting force?

1. 
2. 

A force of 3 N which work perpendicular on a force of 5 N. Calculate the resulting force.

1. 4,0 N
2. 5,2 N
3. 5,8 N
4. 6,0 N

There are 2 dynamometers. The first one has a measuring range of 1 N and the second one has a measuring range of 5 N. Calculate which dynamometer contains the stiffest spring.

What is the resulting force?

1. 290 N to the right
2. 290 N to the left
3. 50 N to the right
4. 50 N to the left

Forces can be measured with a

1. Scale
2. dynamometer
3. thermometer

You suspend a weight of 100 g on a dynamometer. What value will the dynamometer show?

1. 1 N
2. 10 N
3. 100 N
4. 1000 N

Calculate the mass of a calculater when this calculater is hung on a dynamometer which shows 1 N as a result.

1. 0,10 kg
2. 10 kg
3. 1,0 kg
4. 10 g

Which kind of force is used here?

1. Magnetic force
2. Electric force
3. Force of gravity
4. Sticky force

Which kind of force is used here?

1. Magnetic force
2. Electrical Force
3. Force of gravity
4. Tension force

The force which works opposite to Fg is

1. friction
2. normal force
3. electrical force
4. Tension force

Where is the center of mass located in the picture?

1. A
2. B
3. C
4. D

A bycilcle is more stable when the center of mass is located higher. hoger komt te liggen.

1. True
2. False

An object is stable when the center of mass is located above the supporting surface.

1. true
2. false

When you draw a force (as an arrow) you need to take 3 properties into consideration. Which 3 are those?

1. Direction, length, point of application
2. Thickness, length, point of application
3. Direction, length, center of mass
4. Thickness, length, center of mass

With which formula can you calculate the spring constant?

1. C=​x​​F​​
2. C=​F​​x​​
3. F=​x​​C​​
4. C⋅F=x

What is the Si-unit for the spring constant?

1. k
2. kg/m
3. N/cm
4. N/m

Would the line in the graph go more or less steep if the spring constant is higher?

1. Steeper
2. Less steep

Calculate the spring constant by using the graph

1. 50 N/m
2. 2 N/m
3. -50 N/m
4. -2 N/m

A spring has a length of 23,2 cm. When 250 g is hung on it it extends to 31,8 cm. Calculate the spring constant

1. 0,28 N/cm
2. 028 N/m
3. 29 N/cm
4. 29 N/m

A block is suspended on a spring. Is the first law of newton working?

1. Yes
2. No

When it snows the breaking distance is longer. How is this possible?

1. The air resistance has been reduced
2. The air resistance has been increased
3. The sliding resistance has been reduced.
4. The sliding resistance has been increased.

Which is not a resisting force?

1. Breaking force
2. Pushing force
3. Air friction
4. Rolling friction

What is the value of the air friction when the car drives with a constant speed?

1. 1000 N
2. 1500 N
3. 2000 N
4. 2500N

A cyclist is cycling up a mountain. Which is the resisting force?

1. Force of gravity
2. Rolling friction
3. Air resistance
4. All 3