885958
Pregunta 1
Pregunta
What can a force do?
Respuesta
-
Change the shape of an object
-
Make an object disappear
-
Change an object's state of rest or motion
-
Create energy
Pregunta 2
Pregunta
What is the unit of force?
Respuesta
-
Pascal, Pa
-
Newton, N
-
Siemens, S
-
Becquerel, Bq
Pregunta 3
Pregunta
True or false? Every force has an equal and opposite force.
Respuesta
- True
- False
Pregunta 4
Pregunta
True or false? The resultant force is the product of all forces acting upon an object.
Respuesta
- True
- False
Pregunta 5
Pregunta
Which of these situations could occur if the resultant force was zero?
Respuesta
-
The object would remain stationary
-
The object would accelerate
-
The object would decelerate
-
The object would move at constant speed
Pregunta 6
Pregunta
Which of these situations could occur if the resultant force was not zero?
Respuesta
-
The object would remain stationary
-
The object would accelerate
-
The object would decelerate
-
The object would move at constant speed
Pregunta 7
Pregunta
How many laws of motion did Newton create?
Respuesta
-
One
-
Two
-
Three
Pregunta 8
Pregunta
True or false? Force, mass and acceleration are linked by the equation F = ma.
Respuesta
- True
- False
Pregunta 9
Pregunta
What could you do to increase the acceleration of an object?
Respuesta
-
Increase the force
-
Decrease the force
-
Increase the mass
-
Decrease the mass
Pregunta 10
Pregunta
True or false? The thinking distance is the sum of the stopping distance and the braking distance.
Respuesta
- True
- False
Pregunta 11
Pregunta
Which factors increase thinking distance?
Respuesta
-
Adverse road conditions
-
Tiredness
-
Speed
-
Poorly maintained vehicle
-
Influence of alcohol or drugs
Pregunta 12
Pregunta
Which factors increase braking distance?
Respuesta
-
Adverse road conditions
-
Tiredness
-
Speed
-
Poorly maintained vehicle
-
Influence of alcohol or drugs
Pregunta 13
Pregunta
True or false? The gravitational field strength on Earth is roughly 100N/kg.
Respuesta
- True
- False
Pregunta 14
Pregunta
What force is exerted on objects falling in a fluid?
Respuesta
-
Fluid force
-
Friction
-
Drag force
Pregunta 15
Pregunta
What is the terminal velocity of an object?
Respuesta
-
The speed of an object just before it lands on the ground
-
The speed of an object which is guaranteed to damage it or kill it (if it is alive)
-
The speed of an object at which weight and drag force are balanced
Pregunta 16
Pregunta
True or false? An elastic object stays permanently deformed, even when the forces deforming it are removed.
Respuesta
- True
- False
Pregunta 17
Pregunta
True or false? Hooke's law states that the extension of a spring is directly proportional to the force applied, providing that the limit of proportionality is not exceeded.
Respuesta
- True
- False
Pregunta 18
Pregunta
What does k stand for in F = ke?
Respuesta
-
Force applied, N
-
Extension, m
-
Spring constant, N/m
Pregunta 19
Pregunta
True or false? Using a wind deflector increases the amount of fuel needed.
Respuesta
- True
- False
Pregunta 20
Pregunta
True or false? Speed cameras measure the time it takes for a car to travel over a set distance and then the speed is calculated.
Respuesta
- True
- False
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.