Unit 3: Test 1 Quizs

How does energy transfer out of the object?

• By colliding with another object, energy from this object transfers into another one.

• Through radiation as heat energy dissipates into the environment.

• By converting into mass and leaving the object.

• Via electrical conduction to nearby conductive materials.

What causes an object to start moving?

• An object starts moving after it collides with something else.

• An object starts moving when it is pushed by a person.

• An object starts moving due to the force of gravity alone.

• An object starts moving when it is heated up.

How does an object's motion change before it stops?

• The object speeds up due to increased energy.

• The object maintains a constant speed until it stops.

• The object slows down because its energy is transferred to the surface.

• The object moves in a circular path before stopping.

How does the surface cause the object to stop?

• Energy from the object is transferred to the surface, reducing its speed.

• The surface absorbs all the energy, causing the object to stop instantly.

• The surface creates a vacuum that pulls the object to a halt.

• The surface reflects the energy back to the object, making it go faster.

Why does the object stop?

• The object stops moving because it runs out of fuel.

• The object stops moving because its energy gets transferred to the surface.

• The object stops moving due to gravitational pull.

• The object stops moving because it hits a wall.

How do forces cause the object to move?

• A force is a push or pull that transfers energy to an object. The energy moves the object.

• Forces can only cause objects to stop moving.

• Forces have no effect on the motion of an object unless they are balanced.

• Forces are only effective when they are applied in pairs.

Why should you perform more than one trial in an experiment?

• To ensure your results are not a mistake and to verify their accuracy.

• To make the experiment more complicated and difficult.

• To reduce the time taken for the experiment.

• To impress others with the number of trials conducted.

What do you need for a testable question?

• Starts with how, what, or does

• Includes multiple independent variables

• Is based on personal opinions

• Contains no variables at all

How does energy transfer into the object?

• By colliding with another object, energy from that object transfers into this one.

• Through the process of conduction, energy is transferred directly between objects.

• By radiation, energy is emitted and absorbed by the object.

• Via convection, energy is transferred through the movement of fluids.