WorksheetsScience 8-S.A 1-Reviewer
Total questions: 15
Worksheet time: 14mins
Force causes changes in the shape of an object.
TRUE
FALSE
When a bus suddenly stops, passengers body naturally move forward.
TRUE
FALSE
When the MRT suddenly speeds up, passengers normally move forward.
TRUE
FALSE
In the law of acceleration, for a fixed force, higher mass means lesser acceleration.
TRUE
FALSE
Centripetal force is directed toward the center of the circular path.
TRUE
FALSE
Work done is ZERO when the force applied to the object is OPPOSITE with the direction of motion (displacement).
TRUE
FALSE
What is the other version of the unit Joule (J)?
Newton seconds (Ns)
Newton meter (Nm)
kg.m/s^2
Watt
Which of the following examples below is related to the Newton's First Law of Motion (Law of Inertia)?
The faster the car curves, the lesser the centripetal force needed.
When the car passes a rotunda (circle), if it curves to the left your body will move to the right.
For every action, there's an equal or opposite reaction.
Objects with greater mass, require greater force to generate greater acceleration.
Which of the following statement is TRUE about Potential energy?
An object that is raised on a higher height has greater potential energy.
Potential energy is a type of energy that is in motion.
Potential energy is the product of the mass and velocity of an object.
An object that is raised on a lower height has greater potential energy.
Which explains Newton's Second Law of Motion (Law of Acceleration)?
An object at rest will remain at rest unless a force acts on it.
For every action, there's an equal and opposite reaction.
For a fixed force, greater mass will lead to greater acceleration.
For a constant mass, more force means more acceleration.
Which of the following statement is true about KINETIC ENERGY?
Kinetic energy is energy at rest.
Higher kinetic energy means slower speed.
Higher kinetic energy means faster speed
Kinetic energy is at work in hanged objects
Andy Lim is pushing a 5-kg package by 10 N. What is the acceleration of the package?
(a)
A 50-kg log is rolling at a speed of 5 m/s. What is the log's kinetic energy?
(a)
Hidilyn lifted a 227-kg barbell by a height of 0.75 meters in 1.5 seconds. How much power did Hidilyn use?
1112.3 W
112.3 W
1113 J/s
1113 W
Lily Chonin pushed a shopping cart by 25 N. How far did the cart move if the work done was 15 J?
(a)
