20040 AC Science Year 4 Physical sciences
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How are objects moved by forces? -2<br />
Use the text on page 67 to complete the following.<br />
I. What are six common ways forces can move an object?<br />
2. Which statements are True or False?<br />
(a) An object with a greater mass needs more force to move it.<br />
(b) Objects move in the opposite direction to the force being exerted on them.<br />
(c) An apple falling from a tree is an example of friction.<br />
(d) The greater the pull of gravity, the less an object weighs.<br />
3. (a) Is friction a force that is applied directly or at a distance? ______ _<br />
(b) Is friction greater or less between smooth surfaces? _______ _<br />
4. Explain the force that causes a ball to bounce.<br />
5. Explain what a balanced force is.<br />
6. Draw an arrow to show the direction of the force being applied by people in<br />
each picture.<br />
(a)<br />
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(b)<br />
(c)<br />
AUSTRALIAN CURRICULUM SCIENCE (<strong>Year</strong> 4)<br />
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