WorksheetsCT DYNAMICS
Total questions: 40
Worksheet time: 39mins
During a physics experiment, Angga is trying to measure the force applied to a cart. What is the International System of Units (S.I.) unit of force that he should use?
m
N
Pa
J
Rahman is pushing a box across the floor. Which of the following forces acting on the box is NOT a contact force?
Normal reaction force
Frictional force
Gravitational force
Tension
Surya is dropping a ball from the top of a building. What does the downward force represent?
friction
air resistance
weight
The ball is falling. What is the upward force called?
tension
friction
air resistance
What is the resultant force acting on the box?
2.0 N
3.0 N
5.0 N
8.0 N
How will this box move?
The box will move to the right with constant speed.
The box will accelerate to the right.
The box will not move.
What is the resultant force acting on this box?
0 N
3.0 N
6.0 N
Which are the possible motions of the box? (more than 1 answer)
The box will accelerate to the right.
The box will stay at rest.
The box will move at a constant speed.
1.0 kg
2.0 kg
3.0 kg
5.0 kg
0 N
10 N
0 N
5.0 N
20 N
A box of mass 5.0 kg is pulled to the right with a 20 N force.
If the box is accelerating to the right at 3.0 m/s², what is the frictional force acting on the box?
0 N
5.0 N
15 N
20 N
Which one of the following contains the unit for acceleration?
m/s-1
km-2
m/s-2
m/s
A vector quantity has size and direction.
True
False
A scalar quantity has size only.
True
False
The acceleration due to gravity is
9.8 ms-2
8.9 ms-1
9.8 ms-1
8.9 ms-1
Which of Newton’s Laws is represented by f=ma?
1st Law
3rd Law
2nd Law
If an object is not moving, the forces acting upon it are _____________
unbalanced
weak
balanced
Hulk Smash!
When you double the force, the acceleration ...
Decreases by 1/2
Doubles
Triples
Decreases by 1/3
Which law does this picture exemplify?
Law of Inertia
Law of Action / Reaction
Law of Force and Acceleration
Which law is this picture an example of?
Law of Inertia
Law of Force and Acceleration
Law of Action / Reaction
What is the SI unit for force?
Meters per second squared
Meters
Newtons
Kilograms
Every time your cat’s paw hits her toy string, it swings away from her. How does this demonstrate Newton’s third law of motion?
Objects with mass, such as your cat's paw and toy string, will require inertia.
Objects in action, such as the string toy, will experience force.
For every motion from your cat's paw, there is unbalanced inertia from the string.
For every action your cat makes, there is an equal and opposite reaction from the string.
A cannonball with a mass of 0.5 kg is flying with an acceleration of 10 m/sec2. What is its force?
50 Newtons
5 Newtons
20 Newtons
9.5 Newtons
A squirrel sits on the ground and eats a donut. We know the forces on it must be balanced because...
Forces are always balanced
the squirrel is not accelerating
squirrels are projectiles
he's eating a donut
What Newton's law does this picture represent?
Newton's 2nd law
Law of gravity
Newton's 1st law
Newton's 5th law
How much gravity an object has depends on its _________.
Weight
Speed
Momentum
Mass
The image above describes which law?
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Newton's Law of Universal Gravitation
If a bowling ball and a feather were dropped at the same time in a room with no air resistance (vacuum), which object will hit the ground first?
Bowling Ball
Feather
Both would hit at the same time
Neither one would hit the ground because air is what pushes things down.
If the weight of a body on the Earth's surface is 600 N, what would be its weight in space?
600 N
less than 600 N
more than 600 N
My weight on the Earth's surface is 500 N. What is my mass?
500 kg
500 g
50 kg
50 g
Wheels on a skateboard most likely experience-
Rolling Friction
Sliding Friction
Fluid Friction
Static Friction
Which type of friction is shown in the picture?
fluid
static
rolling
sliding
What is static friction?
The friction between two objects that are not moving.
Friction between a rolling object and the surface that it is rolling on.
Friction is the resistance that one surface or object encounters when moving over another.
The friction of something moving through any type of liquid or air.
