| . 1 pt(s). |
A golf club strikes a golf ball. The ball travels through the air as shown.
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A. | I only | |
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B. | II only | |
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C. | III only | |
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D. | I and II only | |
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E. | I, II and III | |
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| . 1 pt(s). |
The diagram shows the forces acting on a skydiver as he falls through the air. When air resistance balances the weight of the skydiver,
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A. | the skydiver will stop falling downwards | |
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B. | the skydiver will move downwards at a steady speed | |
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C. | the skydiver will move upwards | |
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D. | the skydiver will speed up | |
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E. | the skydiver will slow down | |
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| . 1 pt(s). |
The Earth’s pull on an object is called | |
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A. | friction |
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B. | mass |
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C. | power |
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D. | acceleration |
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E. | weight |
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| . 1 pt(s). |
A student throws a ball at 3 metres per second in the direction shown. The landing distance would be increased by
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A. | increasing the mass of the ball | |
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B. | increasing the speed of the throw of the ball | |
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C. | increasing the weight of the ball | |
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D. | decreasing the force of the throw | |
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E. | decreasing the speed of the throw of the ball. | |
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| . 1 pt(s). |
Which of these would be the best way to prove that a pine stick is more flexible than an oak stick? | ||
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A. |
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B. |
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C. |
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D. |
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| . 1 pt(s). |
According to this chart, which planet will most likely have the highest temperatures?
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A. | Earth | |
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B. | Mars | |
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C. | Mercury | |
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D. | Venus | |
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| . 1 pt(s). |
The Earth is very different from other planets in the solar system because it has the most — | |
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A. | solid rock |
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B. | volcanoes |
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C. | liquid water |
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D. | high winds |
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| . 1 pt(s). |
The diagram below shows a spinning water sprinkler. Water comes through a hose and is sprayed by the sprinkler. Which principle best explains why the sprinkler spins?
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A. | Energy is released when water condenses. | |
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B. | Solid substances are usually more dense than liquid substances. | |
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C. | Every action has an equal and opposite reaction. | |
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D. | Most substances expand when heated and contract when cooled. | |
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| . 1 pt(s). |
The diagrams below illustrate two blocks composed of different materials. If Block A is located on the Moon and Block B is located on Earth, what property do these two blocks have in common?
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A. | They have the same mass | |
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B. | They have the same weight | |
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C. | They have the same volume | |
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D. | They have the same surface area | |
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| . 1 pt(s). |
Which diagram shows balanced forces acting on a box? | ||
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A. |
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B. |
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C. |
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D. |
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E. |
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| . 1 pt(s). |
The diagrams show forces acting on moving objects. Which object is moving at constant speed? | ||
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A. |
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B. |
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C. |
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D. |
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E. |
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| . 1 pt(s). |
A scale model of the planet Mercury is shown. Based on the scale, which of the following is the most accurate diameter of Mercury? (Note: you do not need a ruler to answer this question!)
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A. | 1,000 km | |
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B. | 5,000 km | |
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C. | 50,000 km | |
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D. | 500,000 km | |
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| . 1 pt(s). |
Earth is different from the other planets in our solar system because it — | |
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A. | orbits a star |
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B. | has collided with meteorites |
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C. | has oceans and lakes |
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D. | makes up the majority of the mass of our solar system |
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| . 1 pt(s). |
Venus, the moon, Mars, and the sun are all visible in our sky. All but one of these reflect light from another source. Which of the following produces its own light? | |
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A. | Venus |
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B. | The moon |
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C. | Mars |
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D. | The sun |
