Unang Markahang Pagsusulit sa Agham 8

If Liam is heating a rubber band in a physics experiment. What type of potential energy is this?

• elastic potential energy

• gravity

• gravitational potential energy

• potent energy

In a physics class, Daniel demonstrates the Law of Interaction using a toy car. Which of the following statements is TRUE about the Law of Interaction?

• For every action, there is an equal and opposite reaction.

• A body will remain at rest or move at a constant speed unless acted upon by an external net or unbalanced force.

• The acceleration of an object is inversely proportional to the size of the net force acting on it and directly proportional to its mass.

• The acceleration of an object is directly proportional to the size of the net force acting on it and inversely proportional to its mass.

Mia is playing with a toy car. As she pushes it down the hill, it speeds up. What type of energy is the toy car demonstrating?

• kinetic energy

• potential energy

• gravitational energy

• elastic energy

If Evelyn and Kai are playing a game where they push against each other. Which of the following does NOT describe the action-reaction forces they are experiencing?

• Both forces are equal in size.

• Both forces are opposite to each other in direction.

• Both forces act on the same object.

• The action acts on one object, while the reaction acts on another object.

Which of the following boxes is the easiest for Harper to move?

• 10-kg box

• 2-kg box

• 20-kg box

• 23-kg box

Avery is playing with a toy car. He pushed it forward and noticed that it kept moving until it hit the wall. What is the name of the second law of motion?

• Law of Interaction

• Law of Action-Reaction

• Law of Inertia

• Law of Acceleration

Aiden is playing with a toy car on a flat surface. He pushed the car with a certain force. Which of the following statements is TRUE about the Law of Acceleration in this scenario?

• For every action, there is an equal and opposite reaction.

• A body will remain at rest or move at a constant speed unless acted upon by an external net or unbalanced force.

• The acceleration of an object is inversely proportional to the size of the net force acting on it and directly proportional to its mass.

• The acceleration of an object is directly proportional to the size of the net force acting on it and inversely proportional to its mass.

If Priya is pushing a box that weighs 6 kg with a force of 3 N. What do you think will happen to her acceleration if the applied force increases to 6 N?

• Her acceleration will double.

• Her acceleration will decrease by half.

• Her acceleration will increase three times.

• Her acceleration will remain the same.

If Abigail is cycling and she is being pushed forward by a net force. If the net force is reduced by half, what will happen to her acceleration?

• double

• half

• increase by four times

• decrease by ¼

What will happen to Harper's bicycle speed if the force he applies while pedaling increases while keeping its mass constant?

• The bicycle speed will increase.

• The bicycle speed will decrease.

• The bicycle speed will remain the same.

• The bicycle speed will remain unchanged.