Answer:
Component 1: Short Review
1. Q1. What is a way you can make an object move?
- One common way to make an object move is by applying a force to it. For instance, you can push, pull, or exert a force on an object to set it in motion. The force can change the object's position, velocity, or direction of movement.
2. Q2. If you throw an object, like a ball, into the air across the school yard, it will move in a curved path. What are some other ways to describe how things can move?
• Objects can move in various ways:
- Linear Motion: Moving in a straight line from one point to another.
- Curved Motion: Following a curved path like a ball thrown in an arc.
- Rotational Motion: Spinning or rotating around an axis.
- Periodic Motion: Repeating a motion pattern at regular intervals.
- Random Motion: Moving without a specific pattern or direction.
3. Q3. If we push a toy car across a long table, how can we scientifically measure its movement?
• Measurement of Movement: To scientifically measure the movement of the toy car:
- Distance: Measure the distance the car travels from start to finish.
- Time: Record the time it takes the car to cover the distance.
- Speed: Calculate the speed by dividing the distance covered by the time taken.
- Acceleration: Use accelerometers to measure acceleration, especially if the car changes speed during the movement.
- Energy Expenditure: Assess the energy expended by the toy car to understand the forces and work involved in its movement.
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