AnswersPhysics Sem 1 2025-2026Unit Test

Unit Test — Unit test Answers

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In which scenario is the least amount of work done on a crate?

A
A force of 120 N moves it 25 m.
B
A force of 115 N moves it 26 m.
C
A force of 130 N moves it 22 m.
D
A force of 125 N moves it 27 m.
22
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The use of force to move an object is .

Answer not available
23

Kristina demonstrates a toy for her younger brother. The steps to operate the toy are listed below.Step 1. Push the toy down.Step 2. A spring compresses.Step 3. Release the toy.Step 4. The toy jumps into the air.

A
Elastic potential energy changes to gravitational potential energy.
B
Gravitational potential energy changes to elastic potential energy.
C
Kristina does work to increase the gravitational potential energy.
D
Kristina does work to increase the elastic potential energy.
24

In which scenario is gravitational potential energy present?

A
A rabbit looks out of a hole in the ground.
B
A squirrel runs up the trunk of a tree.
C
A deer runs across a grassy field.
D
A cat pins a mouse to the ground.
25

Which best identifies the requirements for work to be performed?

A
an object that has a force acting on it
B
an object that is moving and has no net force
C
a force acting on a motionless object
D
a force that moves an object

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